MEDIUM
CVE-2023-30802
CWE-540Published: October 10, 2023· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to a source code disclosure vulnerability. A remote and unauthenticated attacker can obtain PHP source code by sending an HTTP request with an invalid Content-Length field.
Technical Analysis
CVE-2023-30802 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
sangfor1 product(s)
next-gen application firewall
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (6)
→
https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/Exploit · Third Party Advisory
→
https://vulncheck.com/advisories/sangfor-ngaf-sourceThird Party Advisory
→
https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/Exploit · Third Party Advisory
→
https://vulncheck.com/advisories/sangfor-ngaf-sourceThird Party Advisory
Quick Facts
CVE IDCVE-2023-30802
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-540
CISA KEVNo
Affected1 vendor(s)
PublishedOct 10, 2023
Related CVEs (CWE-540)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-30802 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.