CVE-2021-44512

low-risk

Published 2021-12-07

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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.0/10 High

LOCAL / HIGH complexity

Affected Products (1)

Tmate-Ssh-Server

Affected Vendors

Tmate

References (4)

Patch https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027a...

Mailing List https://www.openwall.com/lists/oss-security/2021/12/06/2

Patch https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027a...

Mailing List https://www.openwall.com/lists/oss-security/2021/12/06/2

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal