by Kastro
Paper/Archive/CVE-2021-21335

CVE-2021-21335

stnoonan spnego-http-auth-nginx-module — Basic Authentication can be bypassed using a malformed username

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 76.7.767 × 2015.3No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

In the SPNEGO HTTP Authentication Module for nginx (spnego-http-auth-nginx-module) before version 1.1.1 basic Authentication can be bypassed using a malformed username. This affects users of spnego-http-auth-nginx-module that have enabled basic authentication. This is fixed in version 1.1.1 of spnego-http-auth-nginx-module. As a workaround, one may disable basic authentication.

Affected

ProductAffectedFixed inSource
spnego-http-auth-nginx-module< 1.1.1–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

refgithub.com/stnoonan/spnego-http-auth-nginx-module/security/advisories/GHSA-ww8q-72rx-hc54refgithub.com/stnoonan/spnego-http-auth-nginx-module/commit/a06f9efca373e25328b1c53639a48decd0854570refgithub.com/stnoonan/spnego-http-auth-nginx-module/releases/tag/v1.1.1