Detections
Analytics

Web Cache Poisoning

medium Web App Scanning Plugin ID 113338

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Synopsis

Web Cache Poisoning

Description

A caching system has been detected on the application and is vulnerable to web cache poisoning. By manipulating specific unkeyed inputs (headers or cookies that are not included when generating the cache key) it was possible to force the caching system to cache a response that contains user-controlled input. If a response is cached in a shared web cache, such as those commonly found in proxy servers, then all users of that cache will continue to receive the malicious content until the cache entry is purged.

Solution

Disable caching for the affected input or pages. If both the affected input and caching behavior are required, configure the cache to ensure that the input is included in the cache key.

See Also

https://i.blackhat.com/us-18/Thu-August-9/us-18-Kettle-Practical-Web-Cache-Poisoning-Redefining-Unexploitable.pdf

https://owasp.org/www-community/attacks/Cache_Poisoning

Plugin Details

Severity: Medium

ID: 113338

Type: remote

Published: 9/6/2022

Updated: 8/9/2023

Scan Template: api, full, pci, scan

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS Score Source: Tenable

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS Score Source: Tenable

Reference Information