#VU54285 Path traversal in Dovecot - CVE-2021-29157
Published: June 21, 2021
Vulnerability identifier: #VU54285
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-29157
CWE-ID: CWE-22
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Dovecot
Dovecot
Software vendor:
Dovecot
Dovecot
Description
The vulnerability allows a local user to perform directory traversal attacks.
The vulnerability exists due to validation of kid and azp fields in JWT tokens. A local user to ability to control a JWT token location can login as any MTA user and access their emails.
Remediation
Install update from vendor's website.