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F5 Networks BIG-IP : SSL/TLS RC4 vulnerability (K16864) (Bar Mitzvah)

medium Nessus Plugin ID 86010

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the 'Bar Mitzvah' issue.
(CVE-2015-2808)

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K16864.

See Also

https://support.f5.com/csp/article/K16864

Plugin Details

Severity: Medium

ID: 86010

File Name: f5_bigip_SOL16864.nasl

Version: 2.8

Type: local

Published: 9/18/2015

Updated: 3/10/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Information

CPE: cpe:/a:f5:big-ip_link_controller, cpe:/h:f5:big-ip_protocol_security_manager, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_wan_optimization_manager, cpe:/h:f5:big-ip, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_webaccelerator

Required KB Items: Host/local_checks_enabled, Settings/ParanoidReport, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/8/2015

Vulnerability Publication Date: 4/1/2015

Reference Information

CVE: CVE-2015-2808

BID: 73684