CVE-2024-5921
GlobalProtect App: Insufficient Certificate Validation Leads to Privilege Escalation
02 Description
GlobalProtect App: Insufficient Certificate Validation Leads to Privilege Escalation
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 1.45% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 73.2% of scored records. A rank, not a probability.
- NVD base score
- 7.1 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-11-27 03:50Z1 YR AGO
- Last updated
- 2025-02-20 22:30Z1 YR AGO
- Reserved
- 2024-06-12
- Assigning CNA
- palo_alto
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.0)
- CNA CVSS vector
- CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/AU:N/R:U/V:D/RE:M/U:Amber
- Weaknesses
- CWE-295Improper Certificate ValidationBase
- Data version
- 5.1
- Document digest
- c501c230fcb8a0b4cfc986ee484826f73dd694a7f51aa66635386aac86ddad53
05 Affected products
06 References
- security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2024-5921
- blog.amberwolf.comhttps://blog.amberwolf.com/blog/2024/november/palo-alto-globalprotect---code-execution-and-privilege-escalation-via-malicious-vpn-server-cve-2024-5921/
- github.comhttps://github.com/AmberWolfCyber/NachoVPN
07 Remediation
This issue is fixed in GlobalProtect app 6.2.1-c31 on Linux, GlobalProtect app 6.2.6 on Windows, GlobalProtect app 6.2.6-c857 on macOS, GlobalProtect app 6.3.2 on Windows and macOS, and all later GlobalProtect app versions. Additional fixes are under development and will be made available for the remaining platforms (Linux, iOS, and Android). The fix for this vulnerability requires three steps: * Ensure that all of your GlobalProtect portals use TLS certificate chains that meet the criteria specified in the "FIPS-CC Certification Validation" table in our documentation https://docs.paloaltonetworks.com/globalprotect/10-1/globalprotect-admin/certifications/resolve-fips-cc-mode-issues . * Ensure that the TLS certificate chains used by the GlobalProtect portals are added to the root certificate store in your operating system. * Install a fixed version of GlobalProtect using one of the deployment options below. This setting enforces strict X.509v3 verification checks on the certificate provided by the GlobalProtect portal. Note: Prisma Access customers using portals with a *.gpcloudservice.com domain name already have valid TLS certificate chains. The root certificate for these portals is from GoDaddy, which is trusted by default in Windows, macOS, RHEL, Ubuntu, iOS, and Android. Therefore, Prisma Access customers using a GlobalProtect portal with a *.gpcloudservice.com domain name should only need to perform step 3 above. Important: If your GlobalProtect portals do not use