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CVE-2017-7722: Solarwinds Log & Event Manager: Improper Neutralization of Special Elements used in a Command

CVE-2017-7722 is rated critical with a CVSS v3.0 base score of 10.0 and affects Solarwinds Log & Event Manager. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

In SolarWinds Log & Event Manager (LEM) before 6.3.1 Hotfix 4, a menu system is encountered when the SSH service is accessed with "cmc" and "password" (the default username and password). By exploiting a vulnerability in the restrictssh feature of the menuing script, an attacker can escape from the restricted shell.

Severity breakdown

CVSS v3.0 10.0: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Changed. Impact reaches beyond the vulnerable component to other resources.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-77: Improper Neutralization of Special Elements used in a Command

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Affected products

  • Solarwinds Log & Event Manager: 6.3.1

References