CVE-2016-20013
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
sha256crypt and sha512crypt through 0.6 allow attackers to cause a denial of service (CPU consumption) because the algorithm's runtime is proportional to the square of the length of the password.
Overview
- CVE ID
- CVE-2016-20013
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-02-19T05:15:09
- Last Modified Date
- 2022-03-03T16:43:19
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:sha256crypt_project:sha256crypt:*:*:*:*:*:*:*:* | 1 | OR | 0.6 | |
| cpe:2.3:a:sha512crypt_project:sha512crypt:*:*:*:*:*:*:*:* | 1 | OR | 0.6 |
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://twitter.com/solardiz/status/795601240151457793 | Third Party Advisory |
| https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ | Exploit Third Party Advisory |
| https://akkadia.org/drepper/SHA-crypt.txt | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2016-20013 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-20013 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:47:32 | Added to TrackCVE | |||
| 2022-12-06 10:24:38 | 2022-02-19T05:15Z | 2022-02-19T05:15:09 | CVE Published Date | updated |
| 2022-12-06 10:24:38 | 2022-03-03T16:43:19 | CVE Modified Date | updated | |
| 2022-12-06 10:24:38 | Analyzed | Vulnerability Status | updated |