Vulnerability Monitor

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CVE-2018-16873

In Go before 1.10.6 and 1.11.x before 1.11.3, the "go get" command is vulnerable to remote code execution when executed with the -u flag and the import path of a malicious Go package, or a package that imports it directly or indirectly. Specifically, it is only vulnerable in GOPATH mode, but not in module mode (the distinction is documented at https://golang.org/cmd/go/#hdr-Module_aware_go_get). Using custom domains, it's possible to arrange things so that a Git repository is cloned to a folder named ".git" by using a vanity import path that ends with "/.git". If the Git repository root contains a "HEAD" file, a "config" file, an "objects" directory, a "refs" directory, with some work to ensure the proper ordering of operations, "go get -u" can be tricked into considering the parent directory as a repository root, and running Git commands on it. That will use the "config" file in the original Git repository root for its configuration, and if that config file contains malicious commands, they will execute on the system running "go get -u".

Published

2018-12-14T14:29:00.227

Last Modified

2024-11-21T03:53:29.973

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-20
  • Type: Secondary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application golang go < 1.10.6 Yes
Application golang go < 1.11.3 Yes
Application opensuse backports_sle 15.0 Yes
Operating System opensuse leap 15.0 Yes
Operating System opensuse leap 15.1 Yes
Operating System opensuse leap 42.3 Yes
Operating System suse linux_enterprise_server 12 Yes
Operating System debian debian_linux 9.0 Yes
References