CVE-2021-3047CWE-338

PAN-OS: Weak Cryptography Used in Web Interface Authentication

Medium · published August 11, 2021

CVSS v3.1
4.2
EPSS
0%
Percentile
38.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00452 · 38.3th percentile
Weakness
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Published
2021-08-11T17:10Z
EPSS history
Timeline
  • 11 AUG 17:10Z
    PAN-OS: Weak Cryptography Used in Web Interface Authentication
    cvelistv5