VulnerabilityModified

CVE-2023-4494

Stack-based buffer overflow vulnerability in Easy Chat Server 3.1 version.

CRITICAL 9.8EPSS 0.98%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Stack-based buffer overflow vulnerability in Easy Chat Server 3.1 version. An attacker could send an excessively long username string to the register.ghp file asking for the name via a GET request resulting in arbitrary code execution on the remote machine.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.98% probability · 60th percentile
CISA KEV: Not listed
Weakness: CWE-119
Affected: easy chat server project/easy chat server
Source: cve-coordination@incibe.es

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-software-productsThird Party Advisory
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-efs-software-productsThird Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.