CVE-2024-23838
The vulnerability could potentially allow a malicious actor to gain control over the destination URL of the HttpClient used in the API classes.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
TrueLayer.NET is the .Net client for TrueLayer. The vulnerability could potentially allow a malicious actor to gain control over the destination URL of the HttpClient used in the API classes. For applications using the SDK, requests to unexpected resources on local networks or to the internet could be made which could lead to information disclosure. The issue can be mitigated by having strict egress rules limiting the destinations to which requests can be made, and applying strict validation to any user input passed to the `truelayer-dotnet` library. Versions of TrueLayer.Client `v1.6.0` and later are not affected.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- truelayer/truelayer.net
- Source
- security-advisories@github.com
References
- https://github.com/TrueLayer/truelayer-dotnet/commit/75e436ed5360faa73d6e7ce3a9903a3c49505e3ePatch
- https://github.com/TrueLayer/truelayer-dotnet/security/advisories/GHSA-67m4-qxp3-j6hhVendor Advisory
- https://github.com/TrueLayer/truelayer-dotnet/commit/75e436ed5360faa73d6e7ce3a9903a3c49505e3ePatch
- https://github.com/TrueLayer/truelayer-dotnet/security/advisories/GHSA-67m4-qxp3-j6hhVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.