CVE-2021-44512

Description

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.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory github.com Third-Party Advisory openwall.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027aaa1bbe3c9596 third party advisory patch
https://www.openwall.com/lists/oss-security/2021/12/06/2 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-44512?
CVE-2021-44512 has been scored as a high severity vulnerability.
How to fix CVE-2021-44512?
To fix CVE-2021-44512, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-44512 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-44512 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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