SB2018062913 - Multiple vulnerabilities in F5 BIG-IP

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Main Vulnerability Database SB2018062913

SB2018062913 - Multiple vulnerabilities in F5 BIG-IP

Published: June 29, 2018 Updated: July 4, 2018

Security Bulletin ID SB2018062913
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2018-5527)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists in virtual servers configured with a Client SSL or Server SSL profile due to a flaw in the SSL Forward Proxy feature. A remote unauthenticated attacker can cause the target Traffic Management Microkernel (TMM) to consume excessive memory and cause performance degradation or a system reboot.


2) Improper input validation (CVE-ID: CVE-2018-5528)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient input validation. A remote unauthenticated attacker can send specially crafted BIG-IP APM data and cause the target Traffic Management Microkernel (TMM) to restart.


3) Improper input validation (CVE-ID: CVE-2018-5522)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to an error when when processing DIAMETER transactions. A remote attacker can supply specially crafted attribute-value pairs and cause TMM to crash.

4) Denial of service (CVE-ID: CVE-2017-6153)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to a flaw in features that utilizes inflate functionality directly. A remote attacker can use an iRule, or the inflate code from PEM module, conduct a "Zip Bomb" attack and cause the service to crash.

5) Information disclosure (CVE-ID: CVE-2018-5525)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.
The weakness exists in the F5 BIG-IP Configuration utility due to exposure of files containing F5-provided data only. A local attacker can gain access to arbitrary data.


6) Command injection (CVE-ID: CVE-2018-5523)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote administrative attacker to execute arbitrary commands on the target system.
The weakness exists due to command injection. A remote attacker can inject and run arbitrary commands in the Traffic Management User Interface (TMUI), also referred to as the BIG-IP Configuration utility.


Remediation

Install update from vendor's website.

References