CVE-2023-45648
What it is
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 5.9% chance of exploitation in the next 30 days (EPSS).
- 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: 5.9% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 5.9% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Apache Tomcat < 8.5.94
- Apache Tomcat < 9.0.81
- Apache Tomcat < 10.1.14
- Apache Tomcat 9.0.0
- Apache Tomcat 10.1.0
- Apache Tomcat 11.0.0
- Debian Linux 10.0
- Debian Linux 11.0
Attack profile CVSS 3.1 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-2023-45648.md and follow it. Check whether this project is affected by CVE-2023-45648. 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
- https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
- https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
References
- https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
- http://www.openwall.com/lists/oss-security/2023/10/10/10
- https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
- https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html
- https://security.netapp.com/advisory/ntap-20231103-0007/
- https://www.debian.org/security/2023/dsa-5521
- https://www.debian.org/security/2023/dsa-5522