CVE-2019-20372
MEDIUM severity · CVSS 5.3 · CWE-444
5.3CVSS MEDIUM
Summary
NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)70%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/kubernetes/ingress-nginx/pull/4859 ↗
Additional information
- NVD record
- https://github.com/kubernetes/ingress-nginx/pull/4859Patch
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94ePatch
- http://nginx.org/en/CHANGESAdvisory
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdfAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00013.htmlAdvisory
- http://seclists.org/fulldisclosure/2021/Sep/36Advisory
- https://duo.com/docs/dng-notes#version-1.5.4-january-2020Advisory
- https://security.netapp.com/advisory/ntap-20200127-0003/Advisory