SolarWinds Serv-U up to 15.4.2 HF 2 Environment Variable path traversal

Summaryinfo

A vulnerability classified as critical was found in SolarWinds Serv-U up to 15.4.2 HF 2. Affected by this vulnerability is an unknown functionality of the component Environment Variable Handler. Executing a manipulation can lead to path traversal. This vulnerability appears as CVE-2024-45711. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in SolarWinds Serv-U up to 15.4.2 HF 2 and classified as critical. This vulnerability affects an unknown function of the component Environment Variable Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

SolarWinds Serv-U is vulnerable to a directory traversal vulnerability where remote code execution is possible depending on privileges given to the authenticated user. This issue requires a user to be authenticated and this is present when software environment variables are abused. Authentication is required for this vulnerability

The advisory is shared for download at solarwinds.com. This vulnerability was named CVE-2024-45711 since 09/05/2024. The exploitation appears to be difficult. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/17/2024). The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability scanner Nessus provides a plugin with the ID 209168 (SolarWinds Serv-U 15.4.2.0 < 15.5 / 15.4.0 < 15.5 Multiple Vulnerabilities XSS), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (209168). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• File Transfer Software

Vendor

• SolarWinds

Name

• Serv-U

Version

• 15.4.2 HF 2

License

• commercial

Website

• Vendor: https://www.solarwinds.com/

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Once again VulDB remains the best source for vulnerability data.

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