PT-2024-38990 · Linksys · Linksys Wrt54G

Buaa1Otteam · Published 2024-09-04 · Updated 2024-09-07 · CVE-2024-8408

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Linksys WRT54G version 4.21.5

Description: A critical issue affects the function validate services port of the file /apply.cgi in the component POST Parameter Handler. The manipulation of the argument services array leads to a stack-based buffer overflow. This issue can be exploited remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted about this disclosure but did not respond.

Recommendations: As a temporary workaround, consider disabling the validate services port function until a patch is available. Restrict access to the /apply.cgi file to minimize the risk of exploitation. Avoid using the services array argument in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2024-8408

Affected Products

Linksys Wrt54G

References · 12

• 🔥❌ https://github.com/BuaaIOTTeam/Iot_Linksys/blob/main/Linksys_WRT54G_validate_services_port.md · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2024-8408 · Security Note
• https://osv.dev/vulnerability/CVE-2024-8408 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1831379330863092086 · Twitter Post
• https://vuldb.com/?ctiid.276488 · Note
• https://vuldb.com/?id.276488 · Note
• https://twitter.com/SecAideInfo/status/1832361109958918382 · Twitter Post
• https://t.me/cvedetector/4788 · Telegram Post
• https://twitter.com/CVEnew/status/1831335111838900411 · Twitter Post
• https://linksys.com · Note
• https://t.me/cvenotify/93373 · Telegram Post
• https://vuldb.com/?submit.398567 · Note