Vulnerability · Published Oct 10, 2023 · Assigned by VulnCheck
CVE-2023-30803Sangfor Next-Gen Application Firewall Authentication Bypass
Critical 9.8
In plain English
A critical-severity authentication bypass by spoofing in Net-Gen Application Firewall from Sangfor. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 20.9% (higher than 98% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)20.9%top 2.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated attacker can bypass authentication and access administrative functionality by sending HTTP requests using a crafted Y-forwarded-for header.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Sangfor | Net-Gen Application Firewall | 8.0.17 |
Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/ third-party-advisory, exploit, technical-description
- https://vulncheck.com/advisories/sangfor-ngaf-auth-bypass third-party-advisory
- https://aws.amazon.com/marketplace/pp/prodview-uujwjffddxzp4 product