Executive Summary

Informations
Name CVE-2021-29923 First vendor Publication 2021-08-07
Vendor Cve Last vendor Modification 2021-08-17

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Go before 1.17 does not properly consider extraneous zero characters at the beginning of an IP address octet, which (in some situations) allows attackers to bypass access control that is based on IP addresses, because of unexpected octal interpretation. This affects net.ParseIP and net.ParseCIDR.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29923

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 154

Sources (Detail)

Source Url
MISC https://defcon.org/html/defcon-29/dc-29-speakers.html#kaoudis
https://github.com/golang/go/issues/30999
https://github.com/golang/go/issues/43389
https://github.com/sickcodes/security/blob/master/advisories/SICK-2021-016.md
https://go-review.googlesource.com/c/go/+/325829/
https://golang.org/pkg/net/#ParseCIDR

Alert History

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0
1
2
Date Informations
2021-08-17 21:23:15
  • Multiple Updates
2021-08-09 17:22:48
  • Multiple Updates
2021-08-07 21:23:08
  • First insertion