Executive Summary

Informations
Name CVE-2021-29921 First vendor Publication 2021-05-06
Vendor Cve Last vendor Modification 2023-05-03

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29921

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 1
Application 2
Application 1
Application 306

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210622-0003/
GENTOO https://security.gentoo.org/glsa/202305-02
MISC https://bugs.python.org/issue36384
https://docs.python.org/3/library/ipaddress.html
https://github.com/python/cpython/blob/63298930fb531ba2bb4f23bc3b915dbf1e17e9...
https://github.com/python/cpython/pull/12577
https://github.com/python/cpython/pull/25099
https://github.com/sickcodes
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-014.md
https://python-security.readthedocs.io/vuln/ipaddress-ipv4-leading-zeros.html
https://sick.codes/sick-2021-014
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
N/A https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpujul2022.html

Alert History

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Date Informations
2024-02-02 02:24:46
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2021-11-29 21:23:10
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2021-05-06 17:23:05
  • First insertion