Security restrictions bypass in SaltStack

1) Security restrictions bypass

EUVDB-ID: #VU12278

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7893

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows an adjacent unauthenticated attacker to bypass security restrictions on the target system.

The weakness exists due to an unspecified condition related to the relationship between a salt-master server and salt-minions clients. An adjacent attacker can bypass security restrictions and impersonate a salt-masterserver in the target environment.

Mitigation

Update to version 2016.3.6 or later.

Vulnerable software versions

Salt: 2016.3.0 - 2016.3.5

CPE2.3

• cpe:2.3:a:saltstack:salt:2016.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:saltstack:salt:2016.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:saltstack:salt:2016.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:saltstack:salt:2016.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:saltstack:salt:2016.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:saltstack:salt:2016.3.5:*:*:*:*:*:*:*

External links

https://docs.saltstack.com/en/2017.7/topics/releases/2016.3.6.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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