National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2010-1128 Detail

Description

The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected entropy, which makes it easier for context-dependent attackers to guess values that were intended to be unpredictable, as demonstrated by session cookies generated by using the uniqid function.

Source:  MITRE
Description Last Modified:  03/26/2010

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.4 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/14/2010)

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=577582 The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.php.net/ChangeLog-5.php
http://www.php.net/releases/5_2_13.php Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2010-0919.html
http://www.securityfocus.com/bid/38430 Exploit
http://www.vupen.com/english/advisories/2010/0479 Patch Vendor Advisory
http://www.vupen.com/english/advisories/2010/3081

Technical Details

Vulnerability Type (View All)

Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2010-1128
NVD Published Date:
03/26/2010
NVD Last Modified:
12/10/2010