CVE-2016-20013

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2016-20013
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://akkadia.org/drepper/SHA-crypt.txt Exploit Third Party Advisory
https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ Exploit Third Party Advisory
https://twitter.com/solardiz/status/795601240151457793 Third Party Advisory
https://akkadia.org/drepper/SHA-crypt.txt Exploit Third Party Advisory
https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ Exploit Third Party Advisory
https://twitter.com/solardiz/status/795601240151457793 Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:sha256crypt_project:sha256crypt:*:*:*:*:*:*:*:*
cpe:2.3:a:sha512crypt_project:sha512crypt:*:*:*:*:*:*:*:*
History

21 Nov 2024, 02:47

Type Values Removed Values Added
References () https://akkadia.org/drepper/SHA-crypt.txt - Exploit, Third Party Advisory () https://akkadia.org/drepper/SHA-crypt.txt - Exploit, Third Party Advisory
References () https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ - Exploit, Third Party Advisory () https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ - Exploit, Third Party Advisory
References () https://twitter.com/solardiz/status/795601240151457793 - Third Party Advisory () https://twitter.com/solardiz/status/795601240151457793 - Third Party Advisory

03 Mar 2022, 16:43

Type Values Removed Values Added
CPE cpe:2.3:a:sha512crypt_project:sha2512crypt:*:*:*:*:*:*:*:* cpe:2.3:a:sha512crypt_project:sha512crypt:*:*:*:*:*:*:*:*

01 Mar 2022, 02:01

Type Values Removed Values Added
CPE cpe:2.3:a:sha512crypt_project:sha2512crypt:*:*:*:*:*:*:*:*
cpe:2.3:a:sha256crypt_project:sha256crypt:*:*:*:*:*:*:*:*
CWE CWE-770
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
References (MISC) https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ - (MISC) https://pthree.org/2018/05/23/do-not-use-sha256crypt-sha512crypt-theyre-dangerous/ - Exploit, Third Party Advisory
References (MISC) https://twitter.com/solardiz/status/795601240151457793 - (MISC) https://twitter.com/solardiz/status/795601240151457793 - Third Party Advisory
References (MISC) https://akkadia.org/drepper/SHA-crypt.txt - (MISC) https://akkadia.org/drepper/SHA-crypt.txt - Exploit, Third Party Advisory

19 Feb 2022, 05:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-02-19 05:15

Updated : 2024-11-21 02:47

NVD link : CVE-2016-20013

Mitre link : CVE-2016-20013

CVE.ORG link : CVE-2016-20013

JSON object : View

Products Affected

sha256crypt_project

  • sha256crypt

sha512crypt_project

  • sha512crypt
CWE
CWE-770

Allocation of Resources Without Limits or Throttling