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CVE-2023-52137
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CVE-2023-52137
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
The tj-actions/verify-changed-files action allows for command injection in changed filenames, allowing an attacker to execute arbitrary code and potentially leak secrets. The verify-changed-files workflow returns the list of files changed within a workflow execution. This could potentially allow filenames that contain special characters such as ; which can be used by an attacker to take over the GitHub Runner if the output value is used in a raw fashion (thus being directly replaced before execution) inside a run block. By running custom commands, an attacker may be able to steal secrets such as GITHUB_TOKEN if triggered on other events than pull_request.
This has been patched in versions 17 and 17.0.0 by enabling safe_output by default and returning filename paths escaping special characters for bash environments.
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CVSS V3 Severity and Metrics
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Technical Analysis
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Report as Zero-day Exploit
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CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
