cve-2024-52803
Vulnerability from cvelistv5
Published
2024-11-21 16:53
Modified
2024-11-21 21:12
Severity ?
EPSS score ?
Summary
LLama Factory Remote OS Command Injection Vulnerability
References
Impacted products
| ▼ | Vendor | Product |
|---|---|---|
| hiyouga | LLaMA-Factory |
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ghsa-hj3w-wrh4-44vp
Vulnerability from github
Published
2024-11-21 22:20
Modified
2024-11-21 22:20
Severity ?
Summary
LLama Factory Remote OS Command Injection Vulnerability
Details
Summary
A critical remote OS command injection vulnerability has been identified in the Llama Factory training process. This vulnerability arises from improper handling of user input, allowing malicious actors to execute arbitrary OS commands on the host system. The issue is caused by insecure usage of the Popen function with shell=True, coupled with unsanitized user input. Immediate remediation is required to mitigate the risk.
Affected Version
Llama Factory versions <=0.9.0 are affected by this vulnerability.
Impact
Exploitation of this vulnerability allows attackers to:
- Execute arbitrary OS commands on the server.
- Potentially compromise sensitive data or escalate privileges.
- Deploy malware or create persistent backdoors in the system.
This significantly increases the risk of data breaches and operational disruption.
Root Cause
The vulnerability originates from the training process where the output_dir value, obtained from the user input, is injected into the popen function without any sanitization. Furthermore, popen is invoked in a unsafe way by enabling the interact shell (shell=True), leading to remote OS command injection vulnerability.
Vulnerable snippet:
```python
https://github.com/hiyouga/LLaMA-Factory/blob/bd639a137e6f46e1a0005cc91572f5f1ec894f74/src/llamafactory/webui/runner.py#L304-L323
def _launch(self, data: Dict["Component", Any], do_train: bool) -> Generator[Dict["Component", Any], None, None]: ... args = self._parse_train_args(data) if do_train else self._parse_eval_args(data) ... self.trainer = Popen(f"llamafactory-cli train {save_cmd(args)}", env=env, shell=True) yield from self.monitor() ```
Proof of Concept (PoC)
Steps to Reproduce
-
Deploy llama factory
-
Execute the exploitation script from: https://gist.github.com/superboy-zjc/f2d2b93ae511c445ba97e144b70e534d
bash
python3 llama-factory-rce.py --url http://127.0.0.1:7861 --cmd "curl XXX" --trace
Bad actors are able to execute any OS command as they want.
Remediation Recommendations
Avoid using shell=True in Popen.
- Instead, pass the command and its arguments as a list. This prevents user inputs from being executed as part of a shell command.
python
cmd = [
"llamafactory-cli",
"train",
*save_cmd(args).split(),
]
self.trainer = Popen(cmd, env=env)
{
"affected": [
{
"database_specific": {
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},
"package": {
"ecosystem": "PyPI",
"name": "llamafactory"
},
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"events": [
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},
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}
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"aliases": [
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],
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],
"github_reviewed": true,
"github_reviewed_at": "2024-11-21T22:20:45Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "## Summary\n\nA critical remote OS command injection vulnerability has been identified in the Llama Factory training process. This vulnerability arises from improper handling of user input, allowing malicious actors to execute arbitrary OS commands on the host system. The issue is caused by insecure usage of the `Popen` function with `shell=True`, coupled with unsanitized user input. Immediate remediation is required to mitigate the risk.\n\n## Affected Version\n\nLlama Factory versions **\u003c=0.9.0** are affected by this vulnerability.\n\n## Impact\n\nExploitation of this vulnerability allows attackers to:\n\n1. Execute arbitrary OS commands on the server.\n2. Potentially compromise sensitive data or escalate privileges.\n3. Deploy malware or create persistent backdoors in the system.\n\nThis significantly increases the risk of data breaches and operational disruption.\n\n## Root Cause\n\nThe vulnerability originates from the training process where the `output_dir` value, obtained from the user input, is injected into the popen function without any sanitization. Furthermore, popen is invoked in a unsafe way by enabling the interact shell (`shell=True`), leading to remote OS command injection vulnerability.\n\nVulnerable snippet: \n\n```python\n# https://github.com/hiyouga/LLaMA-Factory/blob/bd639a137e6f46e1a0005cc91572f5f1ec894f74/src/llamafactory/webui/runner.py#L304-L323\ndef _launch(self, data: Dict[\"Component\", Any], do_train: bool) -\u003e Generator[Dict[\"Component\", Any], None, None]:\n\t\t\t\t...\n args = self._parse_train_args(data) if do_train else self._parse_eval_args(data)\n\t\t\t\t...\n self.trainer = Popen(f\"llamafactory-cli train {save_cmd(args)}\", env=env, shell=True)\n yield from self.monitor()\n```\n\n## Proof of Concept (PoC)\n\n### Steps to Reproduce\n\n- Deploy llama factory\n\n- Execute the exploitation script from: https://gist.github.com/superboy-zjc/f2d2b93ae511c445ba97e144b70e534d\n\n ```bash\n python3 llama-factory-rce.py --url http://127.0.0.1:7861 --cmd \"curl XXX\" --trace\n ```\n\n\n\nBad actors are able to execute any OS command as they want.\n\n## Remediation Recommendations\n\n**Avoid using `shell=True` in `Popen`.**\n\n- Instead, pass the command and its arguments as a list. This prevents user inputs from being executed as part of a shell command.\n\n```python\ncmd = [\n \"llamafactory-cli\",\n \"train\", \n \t*save_cmd(args).split(),\n]\nself.trainer = Popen(cmd, env=env)\n```\n\n",
"id": "GHSA-hj3w-wrh4-44vp",
"modified": "2024-11-21T22:20:45Z",
"published": "2024-11-21T22:20:45Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/hiyouga/LLaMA-Factory/security/advisories/GHSA-hj3w-wrh4-44vp"
},
{
"type": "WEB",
"url": "https://github.com/hiyouga/LLaMA-Factory/commit/b3aa80d54a67da45e9e237e349486fb9c162b2ac"
},
{
"type": "PACKAGE",
"url": "https://github.com/hiyouga/LLaMA-Factory"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "LLama Factory Remote OS Command Injection Vulnerability"
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.