Cyber Resilience

CVE-2024-7831

HighPublic PoC

Published: 15 August 2024

Published
15 August 2024
Modified
19 August 2024
KEV Added
—
Patch
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CVSS Score v4 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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
EPSS Score 0.0162 82.2th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-7831 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Dlink Dns-120 Firmware. Its CVSS base score is 8.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 17.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

** UNSUPPORTED WHEN ASSIGNED ** 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.…

more

Affected by this vulnerability is the function cgi_get_cooliris of the file /cgi-bin/photocenter_mgr.cgi. The manipulation of the argument path leads to buffer overflow. 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.

CWE(s)
CWE-120

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Buffer overflow in web CGI endpoint (/cgi-bin/photocenter_mgr.cgi) via remote manipulation of 'path' parameter enables remote code execution on public-facing NAS devices, mapped to T1190: Exploit Public-Facing Application.

Affected Assets

dlink
dns-120 firmware
all versions
dlink
dnr-202l firmware
all versions
dlink
dns-315l firmware
all versions
dlink
dns-320 firmware
all versions
dlink
dns-320l firmware
all versions
dlink
dns-320lw firmware
all versions
dlink
dns-321 firmware
all versions
dlink
dnr-322l firmware
all versions
dlink
dns-323 firmware
all versions
dlink
dns-325 firmware
all versions
+10 more product configuration(s) — see NVD for full list

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.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References