Multiple vulnerabilities in SaltStack

1) Improper access control

EUVDB-ID: #VU12733

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

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

CPE2.3

External links

https://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

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/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-2017-12791

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

CPE2.3

External links

https://docs.saltstack.com/en/latest/topics/releases/2017.7.1.html
https://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

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/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-2017-14695

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

CPE2.3

External links

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

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

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

CPE2.3

External links

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

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:Clear]

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

CPE2.3

External links

https://docs.saltstack.com/en/2016.3/topics/releases/2015.8.13.html
https://docs.saltstack.com/en/2016.3/topics/releases/2016.3.5.html
https://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.

Risk	Low
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2016-9639 CVE-2017-12791 CVE-2017-14695 CVE-2017-14696 CVE-2017-5200
CWE-ID	CWE-284 CWE-22 CWE-20 CWE-77
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Salt Web applications / Remote management & hosting panels
Vendor	SaltStack