Author: Ameeba

  • CVE-2025-29831: Critical Use-After-Free Vulnerability in Remote Desktop Gateway Service

    Overview

    This report discusses the critical vulnerability identified as CVE-2025-29831, which targets the Remote Desktop Gateway Service. This vulnerability holds significant importance due to its potential to allow unauthorized attackers to execute code over a network, potentially leading to system compromise or data leakage. Any system utilizing the Remote Desktop Gateway Service is at risk.

    Vulnerability Summary

    CVE ID: CVE-2025-29831
    Severity: High (7.5 CVSS Score)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: Potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    Remote Desktop Gateway Service | All versions prior to the latest patch

    How the Exploit Works

    The exploit leverages a use-after-free vulnerability in the Remote Desktop Gateway Service. An attacker can send specially crafted requests over the network to the Remote Desktop Gateway Service, which due to the vulnerability, incorrectly handles memory operations. As a result, the attacker can execute arbitrary code on the affected system.

    Conceptual Example Code

    Here’s a conceptual example illustrating how this vulnerability might be exploited:

    POST /rdg/service/endpoint HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "malicious_payload": "<CODE TO EXPLOIT USE-AFTER-FREE VULNERABILITY>" }

    In this example, the attacker sends a POST request to the vulnerable endpoint of the Remote Desktop Gateway Service with a malicious payload designed to exploit the use-after-free vulnerability. This can result in unauthorized code execution, leading to potential system compromise and data leakage.

    Mitigation Guidance

    To mitigate the CVE-2025-29831 vulnerability, affected entities should apply the latest vendor-provided patch for the Remote Desktop Gateway Service. If the patch cannot be applied immediately, temporary mitigation can be achieved by using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and block exploit attempts.

  • CVE-2025-26677: Remote Desktop Gateway Service Vulnerability Exploitable for Denial of Service Attacks

    Overview

    CVE-2025-26677 is a serious vulnerability found in the Remote Desktop Gateway Service that, if exploited, can lead to uncontrolled resource consumption. This vulnerability can be utilized by unauthorized attackers to cause a denial of service over a network. Given the widespread use of Remote Desktop Gateway Service across various industries, this vulnerability possesses a significant threat to businesses and individuals alike, potentially leading to system compromise or data leakage.

    Vulnerability Summary

    CVE ID: CVE-2025-26677
    Severity: High, with a CVSS Score of 7.5
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: Denial of service leading to potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    Remote Desktop Gateway Service | All versions prior to vendor patch

    How the Exploit Works

    An unauthorized attacker initiates this exploit by sending a multitude of requests to the Remote Desktop Gateway Service over the network. Due to lack of proper resource control, these requests lead to excessive resource consumption, ultimately causing a denial of service. This can further pave the way for a potential system compromise or data leakage.

    Conceptual Example Code

    The following is a
    conceptual
    example of how an attacker might exploit this vulnerability using a flood of network requests:

    POST /rdp-gateway/endpoint HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "request_payload": "..." }
    # Repeat the request multiple times to trigger uncontrolled resource consumption

    Mitigation Guidance

    To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it is available. Until then, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could serve as a temporary mitigation measure by monitoring and limiting the number of incoming requests.

  • CVE-2025-47276: Vulnerability in Actualizer Resulting from Insecure Password Hashing

    Overview

    This report provides an analysis of the vulnerability identified as CVE-2025-47276 in Actualizer, a single shell script solution that allows developers and embedded engineers to build Debian operating systems. The vulnerability has resulted from the use of OpenSSL’s “-passwd” function, which uses SHA512 for password hashing, increasing the risk of potential system compromise or data leakage. This vulnerability is of significant concern to all users of Actualizer who are building a full Debian Operating System.

    Vulnerability Summary

    CVE ID: CVE-2025-47276
    Severity: High (7.5 CVSS Score)
    Attack Vector: Network
    Privileges Required: Low
    User Interaction: Required
    Impact: Potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    Actualizer | Versions prior to 1.2.0

    How the Exploit Works

    The exploit takes advantage of the insecure password hashing implementation in Actualizer. Prior to version 1.2.0, the tool uses OpenSSL’s “-passwd” function, which uses SHA512 instead of a more secure password hasher such as Yescript/Argon2i. An attacker could potentially crack these hashed passwords, resulting in unauthorized system access.

    Conceptual Example Code

    This is a hypothetical scenario where an attacker attempts to crack hashed passwords. The attacker first obtains the hashed password, possibly through methods such as data leakage or network sniffing:

    # Obtained hashed password
    hashed_password='SHA512$...'

    The attacker then uses a password cracking tool to attempt decryption:

    # Password cracking attempt
    john --format=Raw-SHA512 --wordlist=passwords.txt hashed_password

    The `john` command represents a popular password cracking tool, and `–format=Raw-SHA512` specifies the format of the hashed password. The `–wordlist=passwords.txt` option specifies a file containing potential passwords.

    Mitigation

    To mitigate this vulnerability, users should upgrade to version 1.2.0 of Actualizer. For existing OS deployments, manual password changes are required for both the alpha and root accounts. The change will deploy Debian’s yescript, replacing the older SHA512 hash created by OpenSSL. As a temporary workaround, users can reset the passwords for both `root` and “Alpha” users. Alternatively, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure.

  • CVE-2025-28055: Arbitrary File Read Vulnerability in upset-gal-web v7.1.0

    Overview

    This report discusses a significant cybersecurity vulnerability identified as CVE-2025-28055. The vulnerability is present in the upset-gal-web v7.1.0 where the /api/music/v1/cover.ts contains an arbitrary file read vulnerability. This flaw can lead to potential system compromise or data leakage, impacting both individuals and businesses using the affected version of the software.

    Vulnerability Summary

    CVE ID: CVE-2025-28055
    Severity: High (CVSS: 7.5)
    Attack Vector: Network
    Privileges Required: Low
    User Interaction: None
    Impact: This vulnerability can lead to arbitrary file read, which often results in system compromise or data leakage.

    Affected Products

    Product | Affected Versions

    upset-gal-web | v7.1.0

    How the Exploit Works

    The arbitrary file read vulnerability stems from an issue in the /api/music/v1/cover.ts endpoint. An attacker can exploit this vulnerability by sending a specially crafted request to the endpoint and read any file on the system. This vulnerability does not require any user interaction or elevated privileges, thus making it a critical security risk.

    Conceptual Example Code

    An example of an exploit might look like this:

    GET /api/music/v1/cover.ts?file=../../../../etc/passwd HTTP/1.1
    Host: target.example.com

    The above example exploits the arbitrary file read vulnerability to read the /etc/passwd file, a critical system file on Unix-like systems that contains user account information.

    Mitigation Guidance

    To mitigate this vulnerability, users are advised to apply the vendor-supplied patch as soon as possible. In the meantime, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability. It is also crucial to routinely check for and install any software updates to prevent future vulnerabilities.

  • CVE-2024-56526: User Information Exposure via Smarty Syntax Error in OXID eShop

    Overview

    The cybersecurity world has once again been shaken with the discovery of a new vulnerability, CVE-2024-56526. This flaw resides in the OXID eShop, an ecommerce solution, specifically in versions prior to 7. The vulnerability arises from an issue with CMS pages in combination with Smarty, a PHP-based templating engine, leading to the potential exposure of sensitive user information. This vulnerability is a serious concern for any online retailer using OXID eShop, as it could lead to system compromise or data leakage.

    Vulnerability Summary

    CVE ID: CVE-2024-56526
    Severity: High (7.5/10)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: Exposure of sensitive information and potential system compromise

    Affected Products

    Product | Affected Versions

    OXID eShop | Before 7

    How the Exploit Works

    The vulnerability is a result of a combination of CMS pages and the Smarty templating engine. If a CMS page contains a Smarty syntax error, user information may be displayed inadvertently. This flaw can be exploited remotely by malicious actors, who could use it to extract sensitive user data or potentially gain unauthorized access to the system.

    Conceptual Example Code

    Here is a conceptual example of how an attacker might exploit this vulnerability, by crafting a malicious payload designed to trigger a Smarty syntax error:

    GET /cms/page-with-smarty-error HTTP/1.1
    Host: vulnerable-eshop.example.com

    Once the request is processed, the server could respond with a page containing exposed user information due to the Smarty syntax error.

    Mitigation

    The simplest and most effective mitigation for this issue is to apply the vendor-provided patch. For those unable to immediately apply the patch, a possible temporary measure could be the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit the vulnerability.

  • CVE-2024-42446: APTIOV BIOS Vulnerability Enabling Arbitrary Code Execution

    Overview

    APTIOV’s BIOS is susceptible to a significant vulnerability, CVE-2024-42446, that permits a local attacker to provoke a Time-of-check Time-of-use (TOCTOU) Race Condition. This vulnerability potentially impacts all systems running affected versions of this BIOS, and its exploitation could lead to a system compromise or data leakage, thereby making it a considerable threat to the integrity of users’ data and system security.

    Vulnerability Summary

    CVE ID: CVE-2024-42446
    Severity: High (7.5 CVSS Score)
    Attack Vector: Local
    Privileges Required: Low
    User Interaction: Required
    Impact: System Compromise, Potential Data Leakage

    Affected Products

    Product | Affected Versions

    APTIOV | All versions prior to patch

    How the Exploit Works

    This vulnerability is a classic example of a Time-of-check Time-of-use (TOCTOU) race condition. The attacker can manipulate the BIOS process by exploiting the gap between the check (time of check) and the use (time of use) of a resource. By doing so, the attacker may cause the system to execute arbitrary code. This exploit requires local access to the system and user interaction.

    Conceptual Example Code

    The exploitation of this vulnerability does not involve a specific code or command but rather a sequence of actions that manipulate the timing and sequence of events in the BIOS process. Nonetheless, a conceptual example of the exploit might look like this:

    # Attacker identifies a resource to exploit
    resource = identify_vulnerable_resource()
    # Attacker initiates a race condition
    initiate_race_condition(resource)
    # Attacker injects arbitrary code in the 'use' phase of the resource
    inject_arbitrary_code(resource)

    This is a conceptual example and does not represent actual exploit code. The attacker must have intimate knowledge of the system’s resources and timing to carry out this exploit.

    Mitigation Guidance

    The effective method to mitigate this vulnerability is to apply the patch provided by the vendor. As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to monitor and block suspicious activities. However, these measures do not eliminate the vulnerability, and applying the patch is strongly recommended.

  • CVE-2025-30176: Buffer Overflow Vulnerability in Integrated UMC Component Leading to Denial of Service Condition

    Overview

    The cybersecurity community has identified a critical vulnerability, CVE-2025-30176, that affects various versions of Siemens’ SIMATIC PCS neo, SINEC NMS, SINEMA Remote Connect, and Totally Integrated Automation Portal (TIA Portal), including the User Management Component (UMC). This vulnerability can potentially lead to system compromise or data leakage, making it a severe threat that requires immediate attention.

    Vulnerability Summary

    CVE ID: CVE-2025-30176
    Severity: Critical, CVSS v3 Score of 7.5
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: Denial of Service, potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    SIMATIC PCS neo | V4.1, V5.0
    SINEC NMS | All versions
    SINEMA Remote Connect | All versions
    Totally Integrated Automation Portal (TIA Portal) | V17, V18, V19, V20
    User Management Component (UMC) | All versions < V2.15.1.1 How the Exploit Works

    This critical vulnerability arises from an out-of-bounds read buffer overflow within the integrated UMC component of the affected products. An unauthenticated attacker can remotely exploit this vulnerability by sending specially crafted data to the targeted system. The overflow can cause the system to crash, resulting in a denial of service. In some instances, the exploit may also allow the attacker to execute arbitrary code or access sensitive information.

    Conceptual Example Code

    The following is a conceptual example of how the vulnerability might be exploited using a malicious payload.

    POST /umc/vulnerable_endpoint HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "malicious_payload": "buffer_overflow_string" }

    In this example, the “buffer_overflow_string” would be a crafted string of data designed to overflow the buffer and exploit the vulnerability.
    It is advisable to apply the vendor-released patches immediately or use WAF/IDS solutions as temporary mitigation to prevent potential exploitation of this vulnerability.

  • CVE-2025-30175: Critical Buffer Overflow Vulnerability in Siemens Products

    Overview

    A critical vulnerability, CVE-2025-30175, has been identified in multiple versions of SIMATIC PCS neo, SINEC NMS, SINEMA Remote Connect, Totally Integrated Automation Portal (TIA Portal), and User Management Component (UMC). The vulnerability is of high concern due to the potential for system compromise or data leakage, and it could allow an unauthenticated remote attacker to cause a denial of service condition.

    Vulnerability Summary

    CVE ID: CVE-2025-30175
    Severity: High (7.5 CVSS)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: System compromise and potential data leakage

    Affected Products

    Product | Affected Versions

    SIMATIC PCS neo | V4.1, V5.0
    SINEC NMS | All versions
    SINEMA Remote Connect | All versions
    TIA Portal | V17, V18, V19, V20
    User Management Component (UMC) | All versions < V2.15.1.1 How the Exploit Works

    The exploit takes advantage of an out of bounds write buffer overflow vulnerability in the integrated UMC component of the affected products. An unauthenticated, remote attacker could send specially crafted data to the targeted system, causing the system to write data beyond the boundaries of allocated memory buffers. This could lead to a denial of service condition or potentially allow the attacker to execute arbitrary code.

    Conceptual Example Code

    A conceptual example of the exploit might look like this:

    POST /UMCcomponent/endpoint HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "buffer_overflow_payload": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..." }

    The “buffer_overflow_payload” in the example contains an unusually large amount of data, specifically designed to overflow the allocated memory buffer and exploit the vulnerability.

  • CVE-2025-30174: Buffer Overflow Vulnerability in SIMATIC PCS and TIA Portal Products

    Overview

    A critical vulnerability identified as CVE-2025-30174 has been discovered in various versions of SIMATIC PCS neo, SINEC NMS, SINEMA Remote Connect, and Totally Integrated Automation Portal (TIA Portal) products. This vulnerability lies in the User Management Component (UMC) of these products and can be exploited by an unauthenticated remote attacker to cause a denial of service condition. This vulnerability presents a significant security risk, potentially leading to system compromise or data leakage.

    Vulnerability Summary

    CVE ID: CVE-2025-30174
    Severity: High (CVSS: 7.5)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: Denial of service, Potential system compromise and data leakage

    Affected Products

    Product | Affected Versions

    SIMATIC PCS neo | All versions < V2.15.1.1 SINEC NMS | All versions < V2.15.1.1 SINEMA Remote Connect | All versions < V2.15.1.1 Totally Integrated Automation Portal (TIA Portal) | V17 - V20, All versions < V2.15.1.1 User Management Component (UMC) | All versions < V2.15.1.1 How the Exploit Works

    The vulnerability arises from an out of bound read buffer overflow in the integrated User Management Component (UMC) of the affected products. An unauthenticated remote attacker can send specially crafted data packets to the targeted system. The system, not properly validating the size of the incoming data, may attempt to store it in a buffer that is smaller than the data size, causing an overflow condition. This can lead to a denial of service, and possibly, an attacker may execute arbitrary code on the system.

    Conceptual Example Code

    POST /umc/api/login HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "username": "admin", "password": "A"*10000 }

    In the above conceptual example, an attacker sends a large amount of data (represented by “A”*10000) as the password field to the login API endpoint of the UMC. This can lead to a buffer overflow if the system doesn’t properly validate the size of the incoming data.

    Mitigation Guidance

    Affected users are advised to apply the vendor-supplied patch immediately, upgrading to versions V2.15.1.1 or later. As a temporary measure, Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) can be used to block or alert of potential attacks.

  • CVE-2025-24007: Weak Password Obfuscation Vulnerability in SIRIUS Safety Systems

    Overview

    This report provides a detailed analysis of a serious vulnerability identified in SIRIUS 3RK3 Modular Safety System (MSS) and SIRIUS Safety Relays 3SK2 across all versions. The vulnerability stems from a weak password obfuscation mechanism, making it possible for attackers with network access to retrieve and de-obfuscate the safety password. Given the potential for system compromise or data leakage, addressing this vulnerability is critical.

    Vulnerability Summary

    CVE ID: CVE-2025-24007
    Severity: High (7.5 CVSS Score)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: System compromise or data leakage

    Affected Products

    Product | Affected Versions

    SIRIUS 3RK3 Modular Safety System (MSS) | All versions
    SIRIUS Safety Relays 3SK2 | All versions

    How the Exploit Works

    The exploit leverages the weak password obfuscation mechanism present in the SIRIUS safety systems. An attacker with network access can retrieve the obfuscated safety password. Given the weakness in the obfuscation, they can then de-obfuscate this password. With the safety password in hand, the attacker can then bypass protection mechanisms against inadvertent operating errors, potentially causing system compromise or data leakage.

    Conceptual Example Code

    Below is a conceptual representation of how an attacker might exploit this vulnerability:

    GET /retrieve/password HTTP/1.1
    Host: target.sirius.com
    Accept: application/json

    In the above pseudocode, the attacker sends a simple HTTP GET request to a hypothetical endpoint that retrieves the obfuscated safety password.

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