Apache Tomcat up to 8.5.95/9.0.82/10.1.15/11.0.0-M10 HTTP Trailer Header request smuggling

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache Tomcat up to 8.5.95/9.0.82/10.1.15/11.0.0-M10. It has been declared as problematic. The impacted element is an unknown function of the component HTTP Trailer Header Handler. Such manipulation leads to request smuggling. This vulnerability is listed as CVE-2023-46589. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Tomcat up to 8.5.95/9.0.82/10.1.15/11.0.0-M10 (Application Server Software) and classified as problematic. Affected by this issue is some unknown processing of the component HTTP Trailer Header Handler. The manipulation with an unknown input leads to a request smuggling vulnerability. Using CWE to declare the problem leads to CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. Impacted is integrity. CVE summarizes:

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

The weakness was presented 11/28/2023 by Norihito Aimoto. The advisory is shared for download at lists.apache.org. This vulnerability is handled as CVE-2023-46589 since 10/23/2023. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 214478 (Debian dla-3707 : libtomcat9-embed-java - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.5.96, 9.0.83, 10.1.16 or 11.0.0-M11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (214478). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Request smuggling
CWE: CWE-444
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 214478
Nessus Name: Debian dla-3707 : libtomcat9-embed-java - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tomcat 8.5.96/9.0.83/10.1.16/11.0.0-M11

Timelineinfo

10/23/2023 🔍
11/28/2023 +36 days 🔍
11/28/2023 +0 days 🔍
01/23/2025 +422 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Researcher: Norihito Aimoto
Status: Confirmed

CVE: CVE-2023-46589 (🔍)
GCVE (CVE): GCVE-0-2023-46589
GCVE (VulDB): GCVE-100-246308

Entryinfo

Created: 11/28/2023 17:19
Updated: 01/23/2025 02:48
Changes: 11/28/2023 17:19 (41), 12/17/2023 19:57 (11), 07/12/2024 18:37 (26), 01/23/2025 02:48 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

 Anonymous User
(+0)
2 years ago
Good morning,
Please note that this high severity org.apache.tomcat:tomcat-catalina Dependency vulnerability was introduced in versions 9.4.0, 9.7.0, 9.9.0, 9.10.0, 9.11.0, and 9.12.0 of Jira Software Data Center and Server.
We would greatly appreciate it if you would add the following cpe "atlassian:jira_software" OR "atlassian:jira_server".
Best regards,
CERT
Unfortunately, we do not add upstream products to 3rd party components.

Interested in the pricing of exploits?

See the underground prices here!