CVE-2021-27293
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
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.
Overview
- CVE ID
- CVE-2021-27293
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-07-12T11:15:08
- Last Modified Date
- 2021-09-09T12:43:33
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:restsharp:restsharp:*:*:*:*:*:*:*:* | 1 | OR | 106.11.7 | |
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.10:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.11:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.12:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.6:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:restsharp:restsharp:106.11.8:alpha0.7:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://restsharp.dev/ | Product |
| https://github.com/restsharp/RestSharp/issues/1556 | Exploit Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27293 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27293 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:06:33 | Added to TrackCVE | |||
| 2022-12-05 05:45:32 | 2021-07-12T11:15Z | 2021-07-12T11:15:08 | CVE Published Date | updated |
| 2022-12-05 05:45:32 | 2021-09-09T12:43:33 | CVE Modified Date | updated | |
| 2022-12-05 05:45:32 | Analyzed | Vulnerability Status | updated |