Vulnerability Monitor

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CVE-2021-31232

The Alertmanager in CNCF Cortex before 1.8.1 has a local file disclosure vulnerability when -experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list.

Published

2021-04-30T13:15:07.577

Last Modified

2024-11-21T06:05:21.030

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	linuxfoundation	cortex	< 1.8.1	Yes

References

https://community.grafana.com/c/security-announcements Third Party Advisory ([email protected])
https://github.com/cortexproject/cortex Third Party Advisory ([email protected])
https://github.com/cortexproject/cortex/pull/4129/files Patch, Third Party Advisory ([email protected])
https://lists.cncf.io/g/cortex-users/message/50 Release Notes, Vendor Advisory ([email protected])
https://community.grafana.com/c/security-announcements Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/cortexproject/cortex Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/cortexproject/cortex/pull/4129/files Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.cncf.io/g/cortex-users/message/50 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)