PT-2021-18743 · Palo Alto Networks · Pan-Os

Gabor Acs-Kurucz + 1 · Published 2021-08-11 · Updated 2021-08-19 · CVE-2021-3047

Positive Technologies (AI Summary)

CVSS v3.1

4.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions PAN-OS versions 8.1 through 8.1.18 PAN-OS versions 9.0 through 9.0.13 PAN-OS versions 9.1 through 9.1.9 PAN-OS versions 10.0 through 10.0.3

Description A cryptographically weak pseudo-random number generator (PRNG) is used during authentication to the Palo Alto Networks PAN-OS web interface. This enables an authenticated attacker, with the capability to observe their own authentication secrets over a long duration on the PAN-OS appliance, to impersonate another authenticated web interface administrator's session.

Recommendations For PAN-OS 8.1 versions earlier than 8.1.19, update to version 8.1.19 or later. For PAN-OS 9.0 versions earlier than 9.0.14, update to version 9.0.14 or later. For PAN-OS 9.1 versions earlier than 9.1.10, update to version 9.1.10 or later. For PAN-OS 10.0 versions earlier than 10.0.4, update to version 10.0.4 or later.

Fix

Weakness Enumeration

CWE-338

Related Identifiers

CVE-2021-3047

Affected Products

Pan-Os

References · 7

• https://security.paloaltonetworks.com/CVE-2021-3047 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3047 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3047 · Security Note
• https://t.me/cibsecurity/27168 · Telegram Post
• https://t.me/cvenotify/19143 · Telegram Post
• https://t.me/cvenotify/19149 · Telegram Post
• https://t.me/cvenotify/19786 · Telegram Post