Path Traversal in Open-Systems Log-User-Session
CVE-2018-1000857
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.033 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.halfdog.net/Security/2018/LogUserSessionLocalRootPrivilegeEscalation/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1000857?
- CVE-2018-1000857 is a high-severity vulnerability in Open-Systems Log-User-Session, classified under Path Traversal. CVSS score: 8.8/10. Published 2018-12-20.
- How severe is CVE-2018-1000857?
- High severity. CVSS v3 base score is 8.8 out of 10.