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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

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

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

No history.

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

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