CVE-2021-32688 (GCVE-0-2021-32688)
Vulnerability from cvelistv5
Published
2021-07-12 13:45
Modified
2024-08-03 23:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-285 - Improper Authorization
Summary
Nextcloud Server is a Nextcloud package that handles data storage. Nextcloud Server supports application specific tokens for authentication purposes. These tokens are supposed to be granted to a specific applications (e.g. DAV sync clients), and can also be configured by the user to not have any filesystem access. Due to a lacking permission check, the tokens were able to change their own permissions in versions prior to 19.0.13, 20.0.11, and 21.0.3. Thus fileystem limited tokens were able to grant themselves access to the filesystem. The issue is patched in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds aside from upgrading.
References
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nextcloud | security-advisories |
Version: < 19.0.13 Version: >= 20.0.0, < 20.0.11 Version: >= 21.0.0, < 21.0.3 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.
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