SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-6168

On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack…

HIGH 7.4EPSS 19.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 19.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.

CVSS 3.0
7.4 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
19.55% probability · 97th percentile
CISA KEV
Not listed
Weakness
CWE-203
Affected
f5/big-ip ltm · f5/big-ip application acceleration manager · f5/big-ip afm · f5/big-ip analytics · f5/big-ip apm · f5/big-ip asm · f5/big-ip link controller · f5/big-ip pem · f5/websafe
Source
f5sirt@f5.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.