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CVE-2021-29157
Published: Jun 28, 2021
Modified: Aug 3, 2024
PUBLISHED
CVSS v3.1
7.5
HIGH
Description
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AC:H/AV:L/A:N/C:H/I:H/PR:L/S:C/UI:N
Attack Complexity
High
Attack Vector
Local
Availability
None
Confidentiality
High
Integrity
High
Privileges Required
Low
Scope
Changed
User Interaction
None
References
https://dovecot.org/security
x_refsource_MISC
https://www.openwall.com/lists/oss-security/2021/06/28/1
x_refsource_CONFIRM
FEDORA-2021-208340a217
vendor-advisory
x_refsource_FEDORA
FEDORA-2021-891c1ab1ac
vendor-advisory
x_refsource_FEDORA
GLSA-202107-41
vendor-advisory
x_refsource_GENTOO
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