F5 Networks BIG-IP : PHP vulnerability (K64412100)

critical Nessus Plugin ID 97424
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Synopsis

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

Description

Multiple integer overflows in the mbfl_strcut function in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted mb_strcut call. (CVE-2016-4073)

Impact

An attacker may access unauthorized information, run arbitrary code, or cause a disruption of service. In default configurations, the BIG-IP system is not vulnerable; however, the vulnerability can be exposed through custom PHP scripts.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K64412100.

See Also

https://support.f5.com/csp/article/K64412100

Plugin Details

Severity: Critical

ID: 97424

File Name: f5_bigip_SOL64412100.nasl

Version: 3.7

Type: local

Published: 2/28/2017

Updated: 1/4/2019

Dependencies: f5_bigip_detect.nbin

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/29/2016

Reference Information

CVE: CVE-2016-4073