Home/CVE/The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected entropy, which makes it easie
CVE

CVE-2010-1128

The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected entropy, which makes it easie

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.

MEDIUM · CVSS 6.4 EPSS 0.04685
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  • Public exploit or PoC is available
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
php<= 5.2.12
phpall versions
⚠

Public Exploits & PoCs

2
dosPHP 5.3.1 - LCG Entropy Securityverified
pocwww.securityfocus.com · 38430www.securityfocus.com
▣

Scoring & Timeline

6.4
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:N
Published to NVD26 Mar 2010 · 08:30 PM
⚑

Vendor Advisories

2
usnUSN-989-1
rhsaRHSA-2010:0919Low
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://secunia.com/advisories/38708Vendor Advisory
http://secunia.com/advisories/42410
http://www.php.net/ChangeLog-5.php
http://www.php.net/releases/5_2_13.phpVendor Advisory
http://www.redhat.com/support/errata/RHSA-2010-0919.html
http://www.vupen.com/english/advisories/2010/0479PatchVendor Advisory
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