CVE-2021-27293

RestSharp < 106.11.8-alpha.0.13 uses a regular expression which is vulnerable to Regular Expression Denial of Service (ReDoS) when converting strings into DateTimes. If a server responds with a malicious string, the client using RestSharp will be stuck processing it for an exceedingly long time. Thus the remote server can trigger Denial of Service.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 62%
VendorProductVersion
restsharprestsharp
𝑥
≤ 106.11.7
restsharprestsharp
106.11.8:alpha0.10
restsharprestsharp
106.11.8:alpha0.11
restsharprestsharp
106.11.8:alpha0.12
restsharprestsharp
106.11.8:alpha0.2
restsharprestsharp
106.11.8:alpha0.3
restsharprestsharp
106.11.8:alpha0.4
restsharprestsharp
106.11.8:alpha0.6
restsharprestsharp
106.11.8:alpha0.7
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/restsharp/RestSharp/issues/1556
https://restsharp.dev/
https://github.com/restsharp/RestSharp/issues/1556
https://restsharp.dev/