CVE-2024-3388: PAN-OS: User Impersonation in GlobalProtect SSL VPN

Severity: medium (CVSS 5.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-10 · updated 2026-06-17
Weakness: CWE-269

Description

A vulnerability in the GlobalProtect Gateway in Palo Alto Networks PAN-OS software enables an authenticated attacker to impersonate another user and send network packets to internal assets. However, this vulnerability does not allow the attacker to receive response packets from those internal assets.

Affected products

Palo Alto Networks PAN-OS: from 8.1.0 before 8.1.26; from 9.0.0 before 9.0.17; from 9.1.0 before 9.1.17; from 10.1.0 before 10.1.11; from 10.2.0 before 10.2.7; from 11.0.0 before 11.0.3 — fixed in 8.1.26, 9.0.17, 9.1.17, 10.1.11, 10.2.7, 11.0.3
Palo Alto Networks Prisma Access: all versions
Palo Alto Networks PAN-OS: from 8.1.0 before 8.1.26; from 9.0.0 before 9.0.17-h4; from 9.1.0 before 9.1.17; from 10.1.0 before 10.1.11-h4; from 10.2.0 before 10.2.7-h3; from 11.0.0 before 11.0.3 — fixed in 8.1.26, 9.0.17-h4, 9.1.17, 10.1.11-h4, 10.2.7-h3, 11.0.3
Palo Alto Networks Prisma Access: from 10.2 before 10.2.4 — fixed in 10.2.4

How to fix

Upgrade to a fixed version: Palo Alto Networks PAN-OS 8.1.26, 9.0.17, 9.1.17, 10.1.11; Palo Alto Networks PAN-OS 8.1.26, 9.0.17-h4, 9.1.17, 10.1.11-h4; Palo Alto Networks Prisma Access 10.2.4. Check the vendor advisory for mitigations.

References

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