CVE-2021-29157

CVSS 7.5 HIGHEPSS 0.5%

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

28 Jun 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.

CVSS:3.1/AC:H/AV:L/A:N/C:H/I:H/PR:L/S:C/UI:N

Affected products

n/a · n/a

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References

https://dovecot.org/security https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/https://security.gentoo.org/glsa/202107-41 https://www.openwall.com/lists/oss-security/2021/06/28/1