CVE-2019-20372
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 15.0% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 15.0% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 15.0% · EPSS, next 30 days
- Weakness
- CWE-444
- Record status
- Modified
Affected
- f5 nginx < 1.17.7
- Apple Xcode < 13.0
- Canonical Ubuntu Linux 14.04
- Opensuse Leap 15.1
- Netapp Cloud Backup
Attack profile CVSS 3.1 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-20372.md and follow it. Check whether this project is affected by CVE-2019-20372. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://nginx.org/en/CHANGES
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdf
- https://github.com/kubernetes/ingress-nginx/pull/4859
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e
- http://nginx.org/en/CHANGES
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdf
- https://github.com/kubernetes/ingress-nginx/pull/4859
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00013.html
- http://nginx.org/en/CHANGES
- http://seclists.org/fulldisclosure/2021/Sep/36
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdf
- https://duo.com/docs/dng-notes#version-1.5.4-january-2020
- https://github.com/kubernetes/ingress-nginx/pull/4859
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e
- https://security.netapp.com/advisory/ntap-20200127-0003/
- https://support.apple.com/kb/HT212818
- https://usn.ubuntu.com/4235-1/
- https://usn.ubuntu.com/4235-2/
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00013.html
- http://nginx.org/en/CHANGES
- http://seclists.org/fulldisclosure/2021/Sep/36
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdf
- https://duo.com/docs/dng-notes#version-1.5.4-january-2020
- https://github.com/kubernetes/ingress-nginx/pull/4859
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e
- https://security.netapp.com/advisory/ntap-20200127-0003/
- https://support.apple.com/kb/HT212818
- https://usn.ubuntu.com/4235-1/
- https://usn.ubuntu.com/4235-2/