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      Last Modified:  03/26/2010

Quick Info

CVE Dictionary Entry:
CVE-2010-1128
Original release date:
03/26/2010
Last revised:
12/10/2010
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.4 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore:
4.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
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

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource Type Source Name
http://www.php.net/ChangeLog-5.php External Source CONFIRM http://www.php.net/ChangeLog-5.php
http://www.php.net/releases/5_2_13.php Vendor Advisory External Source CONFIRM http://www.php.net/releases/5_2_13.php
http://www.redhat.com/support/errata/RHSA-2010-0919.html External Source REDHAT RHSA-2010:0919
http://www.securityfocus.com/bid/38430 Exploit External Source BID 38430
http://www.vupen.com/english/advisories/2010/0479 Patch; Vendor Advisory External Source VUPEN ADV-2010-0479
http://www.vupen.com/english/advisories/2010/3081 External Source VUPEN ADV-2010-3081

Technical Details

Vulnerability Type (View All)

Change History 2 change records found - show changes