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.


Security Impact Summary

CVE-2010-1128 is a security vulnerability that . Impacting 1 product from php organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.


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

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For php's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.