Vulnerability-Lookup

GSD-2023-45648

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

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. 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.

Aliases

CVE-2023-45648

Aliases

CVE-2023-45648

JSON

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    "id": "GSD-2023-45648"
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            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
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      "lastModifiedDate": "2023-11-04T06:15Z",
      "publishedDate": "2023-10-10T19:15Z"
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}

CVE-2023-45648 (GCVE-0-2023-45648)

Vulnerability from cvelistv5 – Published: 2023-10-10 18:38 – Updated: 2025-10-29 12:00

Title

Apache Tomcat: Trailer header parsing too lenient

Summary

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.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-16 16:59 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

apache mitre root

References

6 references

URL	Tags
https://lists.apache.org/thread/2pv8yz1pyp088tsxf…	vendor-advisory
http://www.openwall.com/lists/oss-security/2023/1…	x_transferred
https://www.debian.org/security/2023/dsa-5522	x_transferred
https://www.debian.org/security/2023/dsa-5521	x_transferred
https://lists.debian.org/debian-lts-announce/2023…	x_transferred
https://security.netapp.com/advisory/ntap-2023110…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.0-M11 (semver) Affected: 10.1.0-M1 , ≤ 10.1.13 (semver) Affected: 9.0.0-M1 , ≤ 9.0.81 (semver) Affected: 8.5.0 , ≤ 8.5.93 (semver) Unknown: 3 , < 8.5.0 (semver) Unknown: 10.0.0-M1 , ≤ 10.0.27 (semver)
apache	tomcat	Affected: 11.0.0-m1 , ≤ 11.0.0-m11 (semver) Affected: 10.1.0-m1 , ≤ 10.1.13 (semver) Affected: 9.0.0-m1 , ≤ 9.0.81 (semver) Affected: 8.5.0 , ≤ 8.5.93 (semver) cpe:2.3:a:apache:tomcat:-:::::::*

Credits

Keran Mu and Jianjun Chen from Tsinghua University and Zhongguancun Laboratory

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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