Chisel AUTH environment variable not respected in server entrypoint
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| jpillora | chisel | affected |
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| Source | ID | Title |
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EUVD |
EUVD-2024-2473 | Chisel is a fast TCP/UDP tunnel, transported over HTTP, secured via SSH. The Chisel server doesn't ever read the documented `AUTH` environment variable used to set credentials, which allows any unauthenticated user to connect, even if credentials were set. Anyone running the Chisel server that is using the `AUTH` environment variable to specify credentials to authenticate against is affected by this vulnerability. Chisel is often used to provide an entrypoint to a private network, which means services that are gated by Chisel may be affected. Additionally, Chisel is often used for exposing services to the internet. An attacker could MITM requests by connecting to a Chisel server and requesting to forward traffic from a remote port. This issue has been addressed in release version 1.10.0. All users are advised to upgrade. There are no known workarounds for this vulnerability. |
Github GHSA |
GHSA-38jh-8h67-m7mj | Chisel's AUTH environment variable not respected in server entrypoint |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.450% probability within 30 days)
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| First Time appeared |
Jpillora
Jpillora chisel |
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| CPEs | cpe:2.3:a:jpillora:chisel:*:*:*:*:*:*:*:* | |
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Jpillora
Jpillora chisel |
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ssvc
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| Description | Chisel is a fast TCP/UDP tunnel, transported over HTTP, secured via SSH. The Chisel server doesn't ever read the documented `AUTH` environment variable used to set credentials, which allows any unauthenticated user to connect, even if credentials were set. Anyone running the Chisel server that is using the `AUTH` environment variable to specify credentials to authenticate against is affected by this vulnerability. Chisel is often used to provide an entrypoint to a private network, which means services that are gated by Chisel may be affected. Additionally, Chisel is often used for exposing services to the internet. An attacker could MITM requests by connecting to a Chisel server and requesting to forward traffic from a remote port. This issue has been addressed in release version 1.10.0. All users are advised to upgrade. There are no known workarounds for this vulnerability. | |
| Title | Chisel AUTH environment variable not respected in server entrypoint | |
| Weaknesses | CWE-1068 CWE-306 |
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cvssV3_1
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