SaltStack Salt salt-api Arbitrary Command Execution Vulnerability [CVE-2018-15751]

CVE Number –  CVE-2018-15751

A vulnerability in the salt-api component of SaltStack Salt could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary commands on a targeted system.

The vulnerability is due to improper security restrictions imposed on the salt-api component of the affected software. An attacker could exploit this vulnerability by using the salt-api component to send a request that submits malicious input to the targeted system. A successful exploit could allow the attacker to bypass authentication and execute arbitrary commands on the system.

SaltStack has confirmed the vulnerability and released software updates.

Analysis
  • To exploit this vulnerability, the attacker must send a request that submits malicious input to the targeted system, making exploitation more difficult in environments that restrict network access from untrusted sources.
Safeguards
  • Administrators are advised to apply the appropriate updates.

    Administrators are advised to allow only trusted users to have network access.

    Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.

    Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

    Administrators can help protect affected systems from external attacks by using a solid firewall strategy.

    Administrators are advised to monitor affected systems.

Vendor Announcements
Fixed Software
  • SaltStack has released software updates at the following links: Salt 2017.7.8 and Salt 2018.3.3



Duncan Newell

Duncan is a technology professional with over 20 years experience of working in various IT roles. He also has a wide range of other skills in radio, electronics and telecommunications.

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