PT-2019-18219 · F5 · Big-Ip

Published 2019-07-03 · Updated 2020-08-24 · CVE-2019-6637

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions BIG-IP (ASM) versions 12.1.0 through 12.1.4 BIG-IP (ASM) versions 13.0.0 through 13.1.1.4 BIG-IP (ASM) versions 14.0.0 through 14.0.0.4 BIG-IP (ASM) versions 14.1.0 through 14.1.0.5

Description The issue is related to the abuse of Application Security Manager (ASM) REST endpoints, which can cause instability in the BIG-IP system. This is due to excessive memory consumption, resulting in the Linux kernel triggering the OOM killer on arbitrary processes. The attack requires an authenticated user with a role of "Guest" or greater privilege.

Recommendations For BIG-IP (ASM) versions 12.1.0 through 12.1.4, consider restricting access to ASM REST endpoints to minimize the risk of exploitation. For BIG-IP (ASM) versions 13.0.0 through 13.1.1.4, consider restricting access to ASM REST endpoints to minimize the risk of exploitation. For BIG-IP (ASM) versions 14.0.0 through 14.0.0.4, consider restricting access to ASM REST endpoints to minimize the risk of exploitation. For BIG-IP (ASM) versions 14.1.0 through 14.1.0.5, consider restricting access to ASM REST endpoints to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2019-6637

Affected Products

Big-Ip

References · 6

• https://support.f5.com/csp/article/K29149494 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-6637 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-6637 · Security Note
• https://t.me/cvenotify/244 · Telegram Post
• http://securityfocus.com/bid/109091 · Note
• https://t.me/cvenotify/188 · Telegram Post