Vulnerability Monitor

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CVE-2010-1128

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.

Published

2010-03-26T20:30:00.877

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.4 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-310
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application php php ≤ 5.2.12 Yes
Application php php 5.2.0 Yes
Application php php 5.2.1 Yes
Application php php 5.2.2 Yes
Application php php 5.2.3 Yes
Application php php 5.2.4 Yes
Application php php 5.2.5 Yes
Application php php 5.2.6 Yes
Application php php 5.2.7 Yes
Application php php 5.2.8 Yes
Application php php 5.2.9 Yes
Application php php 5.2.10 Yes
Application php php 5.2.11 Yes
References