SaltStack vulnerabilities in Cisco Modeling Labs and Virtual Internet Routing Lab
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-11651 CVE-2020-11652 |
| CWE-ID | CWE-287 CWE-22 |
| Exploitation vector | Network |
| Public exploit |
Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild. |
| Vulnerable software Subscribe |
Cisco Virtual Internet Routing Lab Personal Edition Server applications / Virtualization software Cisco Modeling Labs Corporate Edition Server applications / Virtualization software |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
Described vulnerabilities are known to be exploited in the wild. According to Cisco, the following virl servers were compromised on May 7:
It is recommended to install patches ASAP or re-image deployed virtual machines.
1) Improper Authentication
EUVDB-ID: #VU27494
Risk: Critical
CVSSv3.1:
CVE-ID: CVE-2020-11651
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the salt-master process "ClearFuncs" class does not properly validate method calls. A remote non-authenticated attacker can bypass authentication process and gain access some methods without authentication. These methods can be used to retrieve user tokens from the salt master and/or run arbitrary commands on salt minion as root.
Note: this vulnerability is being actively exploited in the wild.
Update the affected releases to a patched release.
Cisco Virtual Internet Routing Lab Personal Edition: 1.2 - 1.6
Cisco Modeling Labs Corporate Edition: 1.2 - 1.6
CPE2.3 External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-salt-2vx545AG
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
2) Path traversal
EUVDB-ID: #VU27495
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2020-11652
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in the salt-master process ClearFuncs class. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.
MitigationUpdate the affected releases to a patched release.
Cisco Virtual Internet Routing Lab Personal Edition: 1.2 - 1.6
Cisco Modeling Labs Corporate Edition: 1.2 - 1.6
CPE2.3 External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-salt-2vx545AG
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
