Input validation error in Apache Traffic Server - CVE-2020-17509

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Main Vulnerability Database Vulnerabilities #VU48817

Input validation error in Apache Traffic Server - CVE-2020-17509

Published: December 8, 2020


Vulnerability identifier: #VU48817
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-17509
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Traffic Server

Detailed vulnerability description

The vulnerability allows a remote attacker to perform cache poisoning attacks.

The vulnerability exists due to insufficient validation of user-supplied input in Apache Traffic Server when negative cache option is enabled. A remote attacker can send specially crafted data to the proxy server and poison negative server's cache.


How to mitigate CVE-2020-17509

Install updates from vendor's website.

Sources