PHPIDS before 0.7 does not properly implement Regular Expression Denial of Service (ReDoS) filters, which allows remote attackers to bypass rulesets and add PHP sequences to a file via unspecified vectors.
Published 2011-12-29 04:15:05
Updated 2011-12-29 05:00:00
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2011-5021

Probability of exploitation activity in the next 30 days: 0.54%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 77 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2011-5021

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST

CWE ids for CVE-2011-5021

  • The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-5021

Products affected by CVE-2011-5021

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