Vulnerability in Tmate Tmate-Ssh-Server
CVE-2021-44512
World-writable permissions on the /tmp/tmate/sessions directory in tmate-ssh-server 2.3.0 allow a local attacker to compromise the integrity of session handling, or obtain the read-write session ID from a read-only session symlink in this directory.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027aaa1bbe3… (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/12/06/2 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44512?
- CVE-2021-44512 is a high-severity vulnerability in Tmate Tmate-Ssh-Server, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.0/10. Published 2021-12-07.
- How severe is CVE-2021-44512?
- High severity. CVSS v3 base score is 7.0 out of 10.