Arbitrary File Read Affecting snyk-broker package, versions <4.80.0


Severity

0.0
medium
0
10

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.07% (29th percentile)

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  • Snyk ID SNYK-JS-SNYKBROKER-570612
  • published 29 May 2020
  • disclosed 28 May 2020
  • credit Wing Chan of The Hut Group

How to fix?

Upgrade snyk-broker to version 4.80.0 or higher.

Overview

snyk-broker is a package that proxies access between snyk.io and your Git repositories, such as GitHub Enterprise, GitHub.com and Bitbucket Server. Snyk Broker can also be used to enable a secure connection with your on-premise Jira deployment.

Affected versions of this package are vulnerable to Arbitrary File Read. It allows arbitrary file reads for users with access to Snyk's internal network by creating symlinks to match whitelisted paths.

CVSS Scores

version 3.1
Expand this section

Snyk

4.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    None
Expand this section

NVD

6.5 medium