CVE-2021-21311
unknown
KEV
CVSS v3
—
CVSS v2
—
VIR risk
1.5
Description
Adminer contains a server-side request forgery vulnerability that, when exploited, allows a remote attacker to obtain potentially sensitive information.
CISA KEV
- Vendor
- Adminer
- Product
- Adminer
- Due date
- 2025-10-20
Predictions
Exploit likelihood
99%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: cisa-kev — https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6 ; https://nvd.nist.gov/vuln/detail/CVE-2021-21311
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-21311
Exploits
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | sid | fixed | 4.7.9-1 |
| debian | trixie | fixed | 4.7.9-1 |
| debian | bookworm | fixed | 4.7.9-1 |
| debian | forky | fixed | 4.7.9-1 |
| debian | bullseye | fixed | 4.7.9-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | vrana/adminer | <4.7.9 | 4.7.9 |
References
- https://security-tracker.debian.org/tracker/CVE-2021-21311
- https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6
- https://nvd.nist.gov/vuln/detail/CVE-2021-21311
- https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351
- https://github.com/vrana/adminer
- https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf
- https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html
- https://packagist.org/packages/vrana/adminer
- https://sourceforge.net/p/adminer/news/2021/02/adminer-479-released
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311
- https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6 ; https://nvd.nist.gov/vuln/detail/CVE-2021-21311
Verify integrity in audit chain (admin only). AS-IS.