vulnwire
8.8high

CVE-2024-7331

TOTOLINK A3300R cstecgi.cgi UploadCustomModule buffer overflow

Published 2 y ago · modified 4 mo ago · JSON

CVSS
8.8
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
1.2%
percentile 68%
Public exploits
0
none known

A vulnerability was found in TOTOLINK A3300R 17.0.0cu.557_B20221024 and classified as critical. Affected by this issue is the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-273254 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC assessment

Exploitation
Proof of concept public
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction (EPSS)

1.20% probability of exploitation in the next 30 days, higher than 68% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA4.08.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA3.18.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA3.08.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA2.09.0AV:N/AC:L/Au:S/C:C/I:C/A:C
CNA4.08.7CVSS: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
CNA3.18.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD3.18.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA2.09.0AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

  • TOTOLINK A3300R
  • totolink a3300r_firmware

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

  • vuldb.com /?id.273254 · vdb-entry, technical-description
  • vuldb.com /?ctiid.273254 · signature, permissions-required
  • vuldb.com /?submit.378351 · third-party-advisory
  • github.com /abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3300R/UploadCustomModule.md · exploit

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.