#VU49039 OS Command Injection in xstream - CVE-2020-26217
Published: November 16, 2020 / Updated: January 24, 2021
Vulnerability identifier: #VU49039
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-26217
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
xstream
xstream
Software vendor:
XStream
XStream
Description
The vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation, when processing blacklists. A remote user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.
External links
- https://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a
- https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
- https://lists.debian.org/debian-lts-announce/2020/12/msg00001.html
- https://www.debian.org/security/2020/dsa-4811
- https://x-stream.github.io/CVE-2020-26217.html