PT-2009-5589 · Microsoft · Patterns & Practices Enterprise Library

Published 2009-09-21 · Updated 2018-10-10 · CVE-2009-3275

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Microsoft patterns & practices Enterprise Library (EntLib) (affected versions not specified)

Description The issue allows context-dependent attackers to cause a denial of service (CPU consumption) via an input string composed of many (backslash) characters followed by a " (double quote), related to a certain regular expression, known as a "ReDoS" vulnerability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Externally-Controlled Format String

Weakness Enumeration

CWE-134

Related Identifiers

CVE-2009-3275

Affected Products

Patterns & Practices Enterprise Library

References · 3

• 🔥 http://checkmarx.com/Upload/Documents/PDF/Checkmarx_OWASP_IL_2009_ReDoS.pdf · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2009-3275 · Security Note
• http://securityfocus.com/archive/1/506419/100/0/threaded · Note