Vulnerability identifier: #VU27047

Vulnerability risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-10699

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
targetcli-fb
Other software / Other software solutions

Vendor: Open-iSCSI

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper privilege management the socket used by targetclid was world-writable. A local user can use this flaw to modify the iSCSI configuration and gain elevated privileges on the target system. 

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

targetcli-fb: 2.1.50 - 2.1.51

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10699
http://github.com/open-iscsi/targetcli-fb/issues/162
http://github.com/open-iscsi/targetcli-fb/commit/1e5d2dda904a50c236a03c420db251d94a67e5da
http://github.com/open-iscsi/targetcli-fb/pull/164

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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.