Vulnerability · Published Apr 10, 2024 · Assigned by GitHub_M
CVE-2024-31995zcap has incomplete expiration checks in capability chains.
Medium 4.3
In plain English
A medium-severity security flaw in zcap from digitalbazaar. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
`@digitalbazaar/zcap` provides JavaScript reference implementation for Authorization Capabilities. Prior to version 9.0.1, when invoking a capability with a chain depth of 2, i.e., it is delegated directly from the root capability, the `expires` property is not properly checked against the current date or other `date` param. This can allow invocations outside of the original intended time period. A zcap still cannot be invoked without being able to use the associated private key material. `@digitalbazaar/zcap` v9.0.1 fixes expiration checking. As a workaround, one may revoke a zcap at any time.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @digitalbazaar/zcap | 9.0.1 | GHSA-hp8h-7x69-4wmv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| digitalbazaar | zcap | < 9.0.1 |
Weakness: CWE-613 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/digitalbazaar/zcap/security/advisories/GHSA-hp8h-7x69-4wmv x_refsource_CONFIRM
- https://github.com/digitalbazaar/zcap/pull/82 x_refsource_MISC
- https://github.com/digitalbazaar/zcap/commit/261eea040109b6e25159c88d8ed49d3c37f8fcfe x_refsource_MISC
- https://github.com/digitalbazaar/zcap/commit/55f8549c80124b85dfb0f3dcf83f2c63f42532e5 x_refsource_MISC