THREATPORT/VULNERABILITY/CVE-2023-30803
CRITICAL SEVERITY

CVE-2023-30803

Next Gen Application Firewall vulnerability

CVSS
9.8
EPSS
18.2%
EPSS pct
97th
Exploited
No known
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 vendor
Sangfor
Affected product
Next Gen Application Firewall
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-290 — Authentication Bypass by Spoofing
Published
2023-10-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 18.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2023-30803

  • Confirm whether Sangfor Next Gen Application Firewall is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-30803.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-30803

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-30803 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2023-30803?

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