cbcvebase.
CVE-2024-8132
published 2024-08-24

CVE-2024-8132: A vulnerability was 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…

PriorityP277critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
23.43%
97.5th percentile
A vulnerability was 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. It has been classified as critical. This affects the function webdav_mgr of the file /cgi-bin/webdav_mgr.cgi of the component HTTP POST Request Handler. The manipulation of the argument f_path leads to command injection. It is possible to initiate the attack 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/webdav_mgr.cgi↗
commandPOST /cgi-bin/webdav_mgr.cgi [body: f_path=<injection>]
snort
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS D-Link webdav_mgr.cgi f_path Parameter Command Injection Attempt (CVE-2024-8132)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:23; content:"/cgi-bin/webdav_mgr.cgi"; fast_pattern; http.request_body; content:"f_path|3d|"; pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:cve,2024-8132; classtype:attempted-admin; sid:2065114; rev:1; metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_10_09, cve CVE_2024_8132, 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;)
  • →Detect HTTP POST requests to /cgi-bin/webdav_mgr.cgi with the f_path parameter containing shell metacharacters (;, newline, backtick, pipe, $) — URL-encoded or literal — indicative of command injection exploitation.
  • →The URI match is exact-length (bsize:23), meaning the full URI is exactly /cgi-bin/webdav_mgr.cgi — use this for high-fidelity matching to reduce false positives.
  • →The vulnerability is in the webdav_mgr function of the file /cgi-bin/webdav_mgr.cgi; the attack vector is a remotely initiated HTTP POST request manipulating the f_path argument.
  • →Traffic is expected in plaintext (non-TLS); perimeter and internal deployment of the Snort/Suricata rule is recommended per the rule metadata.
  • →MITRE mapping: TA0001 Initial Access / T1190 Exploit Public-Facing Application — prioritize alerting on inbound exploitation attempts from external sources.
  • ·All affected D-Link devices (DNS-120, DNR-202L, DNS-315L, DNS-320/320L/320LW/321/323/325/326/327L, DNR-322L/326, DNS-340L/343/345/726-4/1100-4/1200-05/1550-04) are end-of-life and will receive no patches; the only remediation is device retirement/replacement. ↗
  • ·The exploit has been publicly disclosed, raising the likelihood of active in-the-wild exploitation against any internet-exposed affected devices. ↗

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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