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CVE-2006-1547: Apache Struts ActionForm Denial of Service Vulnerability

7.5

CVSS Score
3.1

Basic Information

EPSS Score
0.93917%
Published
5/1/2022
Updated
2/7/2025
KEV Status
Yes
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Package NameEcosystemVulnerable VersionsFirst Patched Version
struts:strutsmaven< 1.2.91.2.9

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from two key aspects: 1) The public getMultipartRequestHandler method in ActionForm provides direct access to multipart request handling internals. 2) The processPopulate method uses BeanUtils' reflection-based population without validating parameter names, allowing attackers to reference dangerous methods. Together, these enable parameter injection to access CommonsMultipartRequestHandler properties through BeanUtils, leading to DoS via resource manipulation. The combination of exposed method (CWE-749) and unvalidated input (CWE-20) creates the vulnerability chain.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

**tion*orm in *p**** So*tw*r* *oun**tion (*S*) Struts ***or* *.*.* wit* ***nUtils *.* *llows r*mot* *tt**k*rs to **us* * **ni*l o* s*rvi** vi* * multip*rt/*orm-**t* *n*o*** *orm wit* * p*r*m*t*r n*m* t**t r***r*n**s t** pu*li* **tMultip*rtR*qu*st**n*

Reasoning

T** vuln*r**ility st*ms *rom two k*y *sp**ts: *) T** pu*li* `**tMultip*rtR*qu*st**n*l*r` m*t*o* in `**tion*orm` provi**s *ir**t ****ss to multip*rt r*qu*st **n*lin* int*rn*ls. *) T** `pro**ssPopul*t*` m*t*o* us*s `***nUtils'` r**l**tion-**s** popul*t