CVE-2021-35211

Vulnerability ID

CVE-2021-35211

Severity

CRITICAL

Severity Score

10.0

Summary

Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.

References

https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211

Mitigation and Patches

https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit

https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35211

Exploits

https://github.com/BishopFox/CVE-2021-35211

https://github.com/NattiSamson/Serv-U-CVE-2021-35211

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

https://www.microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-actor-targeting-solarwinds-serv-u-software-with-0-day-exploit/

https://github.com/BishopFox/CVE-2021-35211