CVE-2021-3056 — Classic Buffer Overflow in Palo Alto Networks Pan-os

CWE-120 — Classic Buffer OverflowCWE-787 — Out-of-bounds Write4 documents4 sources
Severity
8.8HIGHNVD
EPSS
0.8%
top 26.80%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Palo Alto Networks Pan-osPaloaltonetworks Pan-osPalo Alto Networks Prisma Access+2 more
Timeline
PublishedNov 10
Latest updateMay 24

Description

A memory corruption vulnerability in Palo Alto Networks PAN-OS GlobalProtect Clientless VPN enables an authenticated attacker to execute arbitrary code with root user privileges during SAML authentication. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1. Prisma Access customers with Prisma Access 2.1 Preferred firewalls are impacted by…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5palo_alto_networks/prisma_access2.1 Preferred
▶NVDpaloaltonetworks/pan-os8.1.0 — 8.1.20+3
▶CVEListV5palo_alto_networks/pan-os9.0 — 9.0.14+3
▶Palo Altopaloalto/pan-os

🔴Vulnerability Details

2
GHSA
GHSA-63p7-57p8-xrww: A memory corruption vulnerability in Palo Alto Networks PAN-OS GlobalProtect Clientless VPN enables an authenticated attacker to execute arbitrary cod↗2022-05-24
▶
CVEList
PAN-OS: Memory Corruption Vulnerability in GlobalProtect Clientless VPN During SAML Authentication↗2021-11-10
▶

📋Vendor Advisories

1
Palo Alto
PAN-OS: Memory Corruption Vulnerability in GlobalProtect Clientless VPN During SAML Authentication↗2021-11-10
▶
CVE-2021-3056 — Classic Buffer Overflow in Palo | cvebase