Vulnerability Details : CVE-2021-29622
Prometheus is an open-source monitoring system and time series database. In 2.23.0, Prometheus changed its default UI to the New ui. To ensure a seamless transition, the URL's prefixed by /new redirect to /. Due to a bug in the code, it is possible for an attacker to craft an URL that can redirect to any other URL, in the /new endpoint. If a user visits a prometheus server with a specially crafted address, they can be redirected to an arbitrary URL. The issue was patched in the 2.26.1 and 2.27.1 releases. In 2.28.0, the /new endpoint will be removed completely. The workaround is to disable access to /new via a reverse proxy in front of Prometheus.
Vulnerability category: Open redirect
Products affected by CVE-2021-29622
- cpe:2.3:a:prometheus:prometheus:*:*:*:*:*:*:*:*
- cpe:2.3:a:prometheus:prometheus:2.27.0:-:*:*:*:*:*:*
- cpe:2.3:a:prometheus:prometheus:2.27.0:rc0:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-29622
86.63%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-29622
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
2.8
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2021-29622
-
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-29622
-
https://github.com/prometheus/prometheus/security/advisories/GHSA-vx57-7f4q-fpc7
Open Redirect under the /new endpoint · Advisory · prometheus/prometheus · GitHubThird Party Advisory
-
https://github.com/prometheus/prometheus/releases/tag/v2.26.1
Release 2.26.1 / 2021-05-18 · prometheus/prometheus · GitHubThird Party Advisory
-
https://github.com/prometheus/prometheus/releases/tag/v2.27.1
Release 2.27.1 / 2021-05-18 · prometheus/prometheus · GitHubThird Party Advisory
Jump to