#VU89088 Insecure temporary file in Eternal Terminal - CVE-2022-48257

Vulnerability identifier: #VU89088

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48257

CWE-ID: CWE-377

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Eternal Terminal
Other software / Other software solutions

Vendor: MisterTea

Description

The vulnerability allows a local user to disable application log.

The vulnerability exists due to etserver and etclient use predictable logfile names in /tmp. A local user can create a log file before the applications and disable logging.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Eternal Terminal: 1.1.1 - 6.2.1

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External links
https://github.com/MisterTea/EternalTerminal/issues/555
https://github.com/MisterTea/EternalTerminal/pull/556
https://www.openwall.com/lists/oss-security/2023/02/16/1

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.