SB2020082611 - Man-in-the-Middle (MitM) attack in F5 BIG-IP products
Published: August 26, 2020
Security Bulletin ID
SB2020082611
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2020-5917)
CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a Man-in-the-Middle (MitM) attack.
The vulnerability exists due to the BIG-IP and BIG-IQ host OpenSSH servers use keys less than 2048 bits that are no longer considered secure. A remote attacker can perform a Man-in-the-Middle (MitM) attack and/or insecure SSH communications.
Remediation
Install update from vendor's website.