#VU29286 Permissions, Privileges, and Access Controls in rtslib-fb - CVE-2020-14019

Vulnerability identifier: #VU29286

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-14019

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

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

Vendor: Open-iSCSI

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions for "/etc/target/saveconfig.json" when "shutil.copyfile" being used, instead of "shutil.copy". A remote attacker can gain elevated privileges on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

rtslib-fb: 2.1.70 - 2.1.72

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External links
https://github.com/open-iscsi/rtslib-fb/pull/162

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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