Multiple vulnerabilities in SaltStack

1) Improper access control

EUVDB-ID: #VU12733

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9639

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information and write arbitrary files on the target system.

The weakness exists due to improper access control. A remote attacker can read or write to minions with the same id, related to caching.

Mitigation

Update to version 2015.8.11.

Vulnerable software versions

Salt: 2015.8.0 - 2015.8.10

External links

http://docs.saltstack.com/en/2015.8/ref/configuration/master.html#rotate-aes-key

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.

2) Path traversal

EUVDB-ID: #VU12734

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12791

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists in minion id validation due to path traversal. A remote attacker with incorrect credentials can authenticate to a master via a crafted minion ID.

Mitigation

Update to version 2016.11.7 or 2017.7.1 .

Vulnerable software versions

Salt: 2016.11.0 - 2017.7.0

External links

http://docs.saltstack.com/en/latest/topics/releases/2017.7.1.html
http://docs.saltstack.com/en/2016.11/topics/releases/2016.11.7.html

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.

3) Path traversal

EUVDB-ID: #VU12735

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14695

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists in minion id validation due to path traversal. A remote attacker with incorrect credentials can authenticate to a master via a crafted minion ID.

Mitigation

Update to versions 2016.3.8, 2016.11.8 or 2017.7.2.

Vulnerable software versions

Salt: 2016.3.0 - 2017.7.1

External links

http://docs.saltstack.com/en/latest/topics/releases/2017.7.2.html
http://docs.saltstack.com/en/latest/topics/releases/2016.3.8.html
http://docs.saltstack.com/en/latest/topics/releases/2016.11.8.html

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.

4) Improper input validation

EUVDB-ID: #VU12736

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14696

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to improper input validation. A remote attacker can submit a specially crafted authentication request and cause the service to crash.

Mitigation

Update to versions 2016.3.8, 2016.11.8 or 2017.7.2.

Vulnerable software versions

Salt: 2016.3.0 - 2017.7.1

External links

http://docs.saltstack.com/en/latest/topics/releases/2017.7.2.html
http://docs.saltstack.com/en/latest/topics/releases/2016.3.8.html
http://docs.saltstack.com/en/latest/topics/releases/2016.11.8.html

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.

5) Command injection

EUVDB-ID: #VU12737

Risk: Low

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5200

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The weakness exists in a salt-master due to command injection via Salt's ssh_client. A remote attacker can inject and execute arbitrary commands.

Mitigation

Update to versions 2015.8.13, 2016.3.5 or 2016.11.2.

Vulnerable software versions

Salt: 2015.8.0 - 2016.11.1

External links

http://docs.saltstack.com/en/2016.3/topics/releases/2015.8.13.html
http://docs.saltstack.com/en/2016.3/topics/releases/2016.3.5.html
http://docs.saltstack.com/en/latest/topics/releases/2016.11.2.html

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.