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CVE-2018-1000138: Scilico I, Librarian: Server-side request forgery

CVE-2018-1000138 is rated critical with a CVSS v3.1 base score of 9.1 and affects Scilico I, Librarian. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.

Vulnerability description

I, Librarian version 4.8 and earlier contains a SSRF vulnerability in "url" parameter of getFromWeb in functions.php that can result in the attacker abusing functionality on the server to read or update internal resources.

Severity breakdown

CVSS v3.1 9.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

  • 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: Unchanged. Impact stays within the vulnerable component.
  • 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: None. No effect on availability.

Underlying weakness

CWE-918: Server-Side Request Forgery

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Affected products

  • Scilico I, Librarian: up to and including 4.8

References