Vulnerability Details : CVE-2022-23535
LiteDB is a small, fast and lightweight .NET NoSQL embedded database. Versions prior to 5.0.13 are subject to Deserialization of Untrusted Data. LiteDB uses a special field in JSON documents to cast different types from `BsonDocument` to POCO classes. When instances of an object are not the same of class, `BsonMapper` use a special field `_type` string info with full class name with assembly to be loaded and fit into your model. If your end-user can send to your app a plain JSON string, deserialization can load an unsafe object to fit into your model. This issue is patched in version 5.0.13 with some basic fixes to avoid this, but is not 100% guaranteed when using `Object` type. The next major version will contain an allow-list to select what kind of Assembly can be loaded. Workarounds are detailed in the vendor advisory.
Products affected by CVE-2022-23535
- cpe:2.3:a:litedb:litedb:*:*:*:*:*:.net:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-23535
0.60%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-23535
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
7.3
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
3.9
|
3.4
|
GitHub, Inc. |
CWE ids for CVE-2022-23535
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-23535
-
https://github.com/mbdavid/LiteDB/commit/4382ff4dd0dd8b8b16a4e37dfd29727c5f70f93f
Adding testing for Process object deserializaion rule · mbdavid/LiteDB@4382ff4 · GitHubPatch
-
https://github.com/mbdavid/LiteDB/security/advisories/GHSA-3x49-g6rc-c284
Deserialize bad JSON on object type using _type · Advisory · mbdavid/LiteDB · GitHubMitigation;Patch;Vendor Advisory
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