cbcvebase.
CVE-2024-8130
published 2024-08-24

CVE-2024-8130: A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L…

PriorityP273critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
7.95%
94.1th percentile
A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20240814 and classified as critical. Affected by this vulnerability is the function cgi_s3 of the file /cgi-bin/s3.cgi of the component HTTP POST Request Handler. The manipulation of the argument f_a_key leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed that the product is end-of-life. It should be retired and replaced.

Affected

20 ranges
VendorProductVersion rangeFixed in
d-linkdnr-202l——
d-linkdnr-322l——
d-linkdnr-326——
d-linkdns-1100-4——
d-linkdns-120——
d-linkdns-1200-05——
d-linkdns-1550-04——
d-linkdns-315l——
d-linkdns-320——
d-linkdns-320l——
d-linkdns-320lw——
d-linkdns-321——
d-linkdns-323——
d-linkdns-325——
d-linkdns-326——
d-linkdns-327l——
d-linkdns-340l——
d-linkdns-343——
d-linkdns-345——
d-linkdns-726-4——

Detection & IOCsextracted from sources · hover to see the quote

path/cgi-bin/s3.cgi
snort
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS D-Link s3.cgi Multiple Parameters Command Injection Attempt (CVE-2024-8129, CVE-2024-8130)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:15; content:"/cgi-bin/s3.cgi"; fast_pattern; http.request_body; pcre:"/f_(?:job_name|a_key)\x3d[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/"; reference:cve,2024-8129; reference:cve,2024-8130; classtype:attempted-admin; sid:2065116; rev:1; metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_10_09, cve CVE_2024_8129_CVE_2024_8130, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_09, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
  • →Target HTTP POST requests to /cgi-bin/s3.cgi (exact URI length 15 bytes) and inspect the request body for the parameter f_a_key (CVE-2024-8130) or f_job_name (CVE-2024-8129) containing shell metacharacters: semicolon (;/%3B), newline (\n/%0A), backtick (`/%60), pipe (|/%7C), or dollar sign ($/%24) — both raw and URL-encoded forms must be matched.
  • →The attack vector is an HTTP POST request to the /cgi-bin/s3.cgi endpoint; the vulnerable function is cgi_s3 and the injected argument is f_a_key. Traffic is plaintext (no TLS), making perimeter and internal network inspection viable. ↗
  • →The exploit has been publicly disclosed; prioritise detection on perimeter and internal network segments for traffic destined to D-Link NAS/NVR devices (DNS/DNR series). ↗
  • ·All affected D-Link products are end-of-life and will receive no vendor patches. The only remediation is device retirement/replacement; detection rules serve as a compensating control only. ↗
  • ·The Snort/Suricata rule (sid:2065116) covers both CVE-2024-8129 and CVE-2024-8130 simultaneously via the f_job_name and f_a_key parameter alternation. Ensure your ruleset does not suppress one CVE reference while tuning for the other.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/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:X/R:X/V:X/RE:X/U:X
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
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