Sourcegraph is a code search and navigation engine. Sourcegraph prior to version 3.37 is vulnerable to remote code execution in the gitserver
service. The service acts as a git exec proxy, and fails to properly restrict calling git config
. This allows an attacker to set the git core.sshCommand
option, which sets git to use the specified command instead of ssh when they need to connect to a remote system. Exploitation of this vulnerability depends on how Sourcegraph is deployed. An attacker able to make HTTP requests to internal services like gitserver is able to exploit it. This issue is patched in Sourcegraph version 3.37. As a workaround, ensure that requests to gitserver are properly protected.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Sourcegraph | Sourcegraph | * | 3.37 (excluding) |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user’s privileges and any permissions or other access-control specifications that apply to the resource. When access control checks are not applied, users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.