Vulnerability Monitor

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CVE-2013-2566

The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 24 products from oracle, from oracle, from oracle and 21 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2013, 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

2013-03-15T21:55:01.047

Last Modified

2026-06-16T23:53:38.837

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

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

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

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-326
  • Type: Secondary
    CWE-327
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application oracle communications_application_session_controller ≤ 3.9.1 Yes
Application oracle http_server 11.1.1.7.0 Yes
Application oracle http_server 11.1.1.9.0 Yes
Application oracle http_server 12.1.3.0.0 Yes
Application oracle http_server 12.2.1.1.0 Yes
Application oracle http_server 12.2.1.2.0 Yes
Operating System oracle integrated_lights_out_manager_firmware ≤ 3.2.11 Yes
Operating System oracle integrated_lights_out_manager_firmware ≤ 4.0.4 Yes
Operating System fujitsu sparc_enterprise_m3000_firmware < xcp_1121 Yes
Hardware fujitsu sparc_enterprise_m3000 - No
Operating System fujitsu sparc_enterprise_m4000_firmware < xcp_1121 Yes
Hardware fujitsu sparc_enterprise_m4000 - No
Operating System fujitsu sparc_enterprise_m5000_firmware < xcp_1121 Yes
Hardware fujitsu sparc_enterprise_m5000 - No
Operating System fujitsu sparc_enterprise_m8000_firmware < xcp_1121 Yes
Hardware fujitsu sparc_enterprise_m8000 - No
Operating System fujitsu sparc_enterprise_m9000_firmware < xcp_1121 Yes
Hardware fujitsu sparc_enterprise_m9000 - No
Operating System fujitsu m10-1_firmware < xcp2280 Yes
Hardware fujitsu m10-1 - No
Operating System fujitsu m10-4_firmware < xcp2280 Yes
Hardware fujitsu m10-4 - No
Operating System fujitsu m10-4s_firmware < xcp2280 Yes
Hardware fujitsu m10-4s - No
Operating System canonical ubuntu_linux 12.04 Yes
Operating System canonical ubuntu_linux 12.10 Yes
Operating System canonical ubuntu_linux 13.04 Yes
Operating System canonical ubuntu_linux 13.10 Yes
Application mozilla firefox < 17.0.11 Yes
Application mozilla firefox < 25.0.1 Yes
Application mozilla firefox < 24.1.1 Yes
Application mozilla seamonkey < 2.22.1 Yes
Application mozilla thunderbird < 24.1.1 Yes
Application mozilla thunderbird_esr < 17.0.11 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 oracle'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.