var-202007-1397
Vulnerability from variot
In versions 13.1.0-13.1.3.3, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, the BIG-IP system does not properly enforce the access controls for the scp.blacklist files. This allows Admin and Resource Admin users with Secure Copy (SCP) protocol access to read and overwrite blacklisted files via SCP. F5 BIG-IP provides a Traffic Management User Interface (TMUI), also referred to as the Configuration utility, that has multiple vulnerabilities including a remotely exploitable command injection vulnerability that can be used to execute arbitrary commands and subsequently take control of a vulnerable system. F5 BIG-IP devices provide load-balancing capability to application services such as HTTP and DNS. The F5 BIG-IP TMUI management web interface improperly neutralizes untrusted user input and can be abused by unauthenticated remote attackers to perform malicious activities such as cross-site scripting (XSS), cross-site request forgery (CSRF), and command injection CWE-74. The vulnerability identified by CVE-2020-0592 can be abused to achieve arbitrary code execution on the target device with root privileges. Underlying causes and factors in these vulnerabilities include: Improper configuration and a lack of identify checks, see recent article from NCC Group. Understanding the root cause of F5 Networks K52145254: TMUI RCE vulnerability CVE-2020-5902 The TMUI fails to enforce proper authentication and authorization, see OWASP Recommendations The TMUI web interface does not normalize user's input to prevent both XSS and CSRF, allowing a "Deadly Combinations of XSS and CSRF" Lack of role-based access checks allows for for unexpected file access, see Role-Based Access Control Models F5 recommends that the TMUI web interface should be accessible only from a secure or an out-of-band network and not directly from the Internet (K13092). However, many installations, as observed by Bad Packets, do not seem to follow this recommendation. An unauthenticated attacker with network access to the TMUI may be able to execute arbitrary system commands, create or delete files, disable services, and subsequently execute arbitrary code with high privileges such as root. An authenticated user is also be able to perform unexpected activities such as changing configuration files on a vulnerable device. BIG-IP Access Policy Manager (APM) , BIG-IP Advanced Firewall Manager (AFM) , BIG-IP Analytics etc. multiple F5 Networks The product contains an improper default permissions vulnerability.Information may be obtained and information may be tampered with. F5 BIG-IP is an application delivery platform integrated with network traffic management, application security management, load balancing and other functions of the US company F5. The SCP tools in F5 BIG-IP versions 13.1.0 to 13.1.3, 12.1.0 to 12.1.5, and 11.6.1 to 11.6.5 have security vulnerabilities. An attacker could exploit this vulnerability to read or overwrite configuration files
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.