What’s Vulnerable › Vulnerabilities

CVE-2018-1000857

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-20 · updated 2026-06-17
• Weakness: CWE-22

Description

log-user-session version 0.7 and earlier contains a Directory Traversal vulnerability in Main SUID-binary /usr/local/bin/log-user-session that can result in User to root privilege escalation. This attack appear to be exploitable via Malicious unprivileged user executes the vulnerable binary/(remote) environment variable manipulation similar shell-shock also possible.

Affected products

• Open-Systems Log-User-Session: through 0.7

References

• https://www.halfdog.net/Security/2018/LogUserSessionLocalRootPrivilegeEscalation/
• https://www.halfdog.net/Security/2018/LogUserSessionLocalRootPrivilegeEscalation/

Get alerted when CVE-2018-1000857 or the next vulnerability affects your stack