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Public proof of concept

CVE-2023-31740

A public proof of concept exists; no exploitation attested.

  • Published2023-05-23
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

There is a command injection vulnerability in the Linksys E2000 router with firmware version 1.0.06. If an attacker gains web management privileges, they can inject commands into the post request parameters WL_atten_bb, WL_atten_radio, and WL_atten_ctl in the apply.cgi interface, thereby gaining shell privileges.

Timeline

dates in UTC
  1. 2023-05-2301:15CVE publishedNVD

Versions per branch

NVD
Linksys e2000 firmwareversion to verify
BranchAffectedFixed in
1.0= 1.0.06no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2023-05-23
Last Modified
2026-07-09
NVD status
Modified
GitHub Advisory
GHSA-crx4-hwqf-949w

Frequently asked questions

What is CVE-2023-31740?

There is a command injection vulnerability in the Linksys E2000 router with firmware version 1.0.06. If an attacker gains web management privileges, they can inject commands into the post request parameters WL_atten_bb, WL_atten_radio, and WL_atten_ctl in the apply.cgi interface, thereby gaining shell privileges.

Is CVE-2023-31740 actively exploited?

A proof-of-concept exploit exists for CVE-2023-31740, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-31740?

CVE-2023-31740 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record