CVE-2021-3047

PAN-OS: Weak Cryptography Used in Web Interface Authentication

State: Published
Severity: 4.2 Medium
Published: Aug 11, 2021
Updated: Sep 17, 2024
Reserved: Jan 6, 2021

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. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.4. PAN-OS 10.1 versions are not impacted.

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N	palo_alto

Weaknesses

CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Affected Products

Product	Versions
PAN-OSPalo Alto Networks	10.1.*Not affected 8.1 to before 8.1.19Affectedfrom 8.1.19Not affected 9.0 to before 9.0.14Affectedfrom 9.0.14Not affected 10.0 to before 10.0.4Affectedfrom 10.0.4Not affected 9.1 to before 9.1.10Affectedfrom 9.1.10Not affected

References

https://security.paloaltonetworks.com/CVE-2021-3047

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