cbcvebase.
CVE-2017-6168
published 2017-11-17

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…

PriorityP357high7.4CVSS 3.0
AVNACHPRNUINSUCHIHAN
EPSS
21.55%
97.3th percentile
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.

Affected

36 ranges· showing 25
VendorProductVersion rangeFixed in
f5big-ip_aam——
f5big-ip_afm——
f5big-ip_afm——
f5big-ip_afm11.6.0 – 11.6.2—
f5big-ip_afm12.0.0 – 12.1.2—
f5big-ip_analytics——
f5big-ip_analytics——
f5big-ip_analytics11.6.0 – 11.6.2—
f5big-ip_analytics12.0.0 – 12.1.2—
f5big-ip_apm——
f5big-ip_apm——
f5big-ip_apm11.6.0 – 11.6.2—
f5big-ip_apm12.0.0 – 12.1.2—
f5big-ip_application_acceleration_manager——
f5big-ip_application_acceleration_manager11.6.0 – 11.6.2—
f5big-ip_application_acceleration_manager12.0.0 – 12.1.2—
f5big-ip_asm——
f5big-ip_asm——
f5big-ip_asm11.6.0 – 11.6.2—
f5big-ip_asm12.0.0 – 12.1.2—
f5big-ip_link_controller——
f5big-ip_link_controller——
f5big-ip_link_controller11.6.0 – 11.6.2—
f5big-ip_link_controller12.0.0 – 12.1.2—
f5big-ip_ltm——

Detection & IOCsextracted from sources · hover to see the quote

  • →Target virtual servers configured with a Client SSL profile on affected BIG-IP versions; look for anomalous RSA key-exchange traffic patterns indicative of repeated PKCS#1 v1.5 oracle queries (Bleichenbacher/ROBOT attack) ↗
  • →Affected BIG-IP product lines to prioritize in asset inventory and detection scope: BIG-IP AAM, Analytics, Link Controller, AFM, APM, ASM, LTM, PEM, WebSafe ↗
  • →Scope detection to BIG-IP versions 11.6.0–11.6.2, 12.0.0–12.1.2 HF1, and 13.0.0–13.0.0 HF2; presence of these versions with Client SSL profiles enabled is a high-risk indicator ↗
  • ·Vulnerability is only exploitable when a BIG-IP virtual server has a Client SSL profile attached; deployments without Client SSL profiles are not affected ↗
  • ·Fixed versions are 11.6.2 HF1, 12.1.2 HF2, and 13.0.0 HF3; systems already on these hotfixes are not vulnerable ↗

CVSS provenance

nvdv3.07.4HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.