The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningThere is no fixed version for Ubuntu:24.04
gh
.
Note: Versions mentioned in the description apply only to the upstream gh
package and not the gh
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:24.04
relevant fixed versions and status.
The GitHub CLI version 2.6.1 and earlier are vulnerable to remote code execution through a malicious codespace SSH server when using gh codespace ssh
or gh codespace logs
commands. This has been patched in the cli v2.62.0.
Developers connect to remote codespaces through an SSH server running within the devcontainer, which is generally provided through the [default devcontainer image]( https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/adding-a-dev-container-... https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/adding-a-dev-container-configuration/introduction-to-dev-containers#using-the-default-dev-container-configuration) . GitHub CLI [retrieves SSH connection details]( https://github.com/cli/cli/blob/30066b0042d0c5928d959e288144300cb28196c9/internal/codespaces/rpc/inv... https://github.com/cli/cli/blob/30066b0042d0c5928d959e288144300cb28196c9/internal/codespaces/rpc/invoker.go#L230-L244 ), such as remote username, which is used in [executing ssh
commands]( https://github.com/cli/cli/blob/e356c69a6f0125cfaac782c35acf77314f18908d/pkg/cmd/codespace/ssh.go#L2... https://github.com/cli/cli/blob/e356c69a6f0125cfaac782c35acf77314f18908d/pkg/cmd/codespace/ssh.go#L263 ) for gh codespace ssh
or gh codespace logs
commands.
This exploit occurs when a malicious third-party devcontainer contains a modified SSH server that injects ssh
arguments within the SSH connection details. gh codespace ssh
and gh codespace logs
commands could execute arbitrary code on the user's workstation if the remote username contains something like -oProxyCommand="echo hacked" #
. The -oProxyCommand
flag causes ssh
to execute the provided command while #
shell comment causes any other ssh
arguments to be ignored.
In 2.62.0
, the remote username information is being validated before being used.