CVE-2023-4383

A vulnerability, which was classified as critical, was found in MicroWorld eScan Anti-Virus 7.0.32 on Linux. This affects an unknown part of the file runasroot. The manipulation leads to incorrect execution-assigned permissions. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-237315. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness

While it is executing, the product sets the permissions of an object in a way that violates the intended permissions that have been specified by the user.

Affected Software

Potential Mitigations

• Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
• Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/81.html

References

• https://gist.github.com/dmknght/ac489cf3605ded09b3925521afee3003
• https://vuldb.com/?ctiid.237315
• https://vuldb.com/?id.237315
• https://gist.github.com/dmknght/ac489cf3605ded09b3925521afee3003
• https://vuldb.com/?ctiid.237315
• https://vuldb.com/?id.237315