CVE-2023-30804
Published: 10 October 2023
Summary
CVE-2023-30804 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Sangfor Next-Gen Application Firewall. Its CVSS base score is 4.9 (Medium).
Operationally, ranked in the top 9.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is affected by an authenticated file disclosure vulnerability in the svpn_html/loadfile.php endpoint. The flaw, tracked as CVE-2023-30804, allows reading of arbitrary system files and carries a CVSS 3.1 score of 4.9 with the vector AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N; it is also associated with CWE-200.
A remote authenticated attacker can exploit the endpoint to retrieve sensitive system files. When chained with the related CVE-2023-30803, the same file disclosure becomes reachable by unauthenticated remote attackers.
The EPSS score has remained low, with a current value of 0.0516 and a peak of 0.0548. Public references point to detailed analysis from WatchTowr Labs and VulnCheck but do not describe vendor patches or specific mitigation steps.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-35164
Vulnerability details
The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authenticated file disclosure vulnerability. A remote and authenticated attacker can read arbitrary system files using the svpn_html/loadfile.php endpoint. This issue is exploitable by a remote and unauthenticated attacker when…
more
paired with CVE-2023-30803.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Automated marking applies security attributes to system outputs, making it harder for attackers to exploit unmarked sensitive information leading to unauthorized exposure.
Proper attribute retention and permitted-value enforcement limits unauthorized actors from accessing sensitive information lacking correct labels.
Prevents unauthorized exposure of sensitive information by prohibiting untrusted external systems from processing or storing it.
By enforcing authorization matching prior to sharing, the control reduces the risk of exposing sensitive information to unauthorized actors.
Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors.
Data mining protection mechanisms detect and block unauthorized bulk extraction of sensitive data, directly mitigating exposure to unauthorized actors.
Literacy training teaches users to recognize and avoid actions that result in unauthorized exposure of sensitive information.
Retaining and monitoring training records confirms personnel have completed privacy and security awareness training on handling sensitive data, reducing the chance of unauthorized exposure due to lack of knowledge.