Vulnerability CVE-2021-22880

Vulnerability Name:

CVE-2021-22880 (CCN-196803)

Assigned:

2021-02-10

Published:

2021-02-10

Updated:

2022-01-04

Summary:

The PostgreSQL adapter in Active Record before 6.1.2.1, 6.0.3.5, 5.2.4.5 suffers from a regular expression denial of service (REDoS) vulnerability. Carefully crafted input can cause the input validation in the `money` type of the PostgreSQL adapter in Active Record to spend too much time in a regular expression, resulting in the potential for a DoS attack. This only impacts Rails applications that are using PostgreSQL along with money type columns that take user input.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Type:

CWE-400

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2021-22880

Source: CCN
Type: Ruby Web site
[CVE-2021-22880] Possible DoS Vulnerability in Active Record PostgreSQL adapter

Source: MISC
Type: Mitigation, Patch, Vendor Advisory
https://discuss.rubyonrails.org/t/cve-2021-22880-possible-dos-vulnerability-in-active-record-postgresql-adapter/77129

Source: XF
Type: UNKNOWN
rubyonrails-cve202122880-dos(196803)

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://hackerone.com/reports/1023899

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-def0e32233

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-b571fca1b8

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210805-0009/

Source: DEBIAN
Type: Third Party Advisory
DSA-4929

Vulnerable Configuration:

Configuration 1:

cpe:/a:rubyonrails:rails:*:*:*:*:*:*:*:* (Version >= 4.2.0 and < 5.2.4.5)

OR cpe:/a:rubyonrails:rails:*:*:*:*:*:*:*:* (Version >= 6.0.0 and < 6.0.3.5)

OR cpe:/a:rubyonrails:rails:*:*:*:*:*:*:*:* (Version >= 6.1.0 and < 6.1.2.1)

Configuration 2:

cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*

OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:rubyonrails:rails:5.2.4:-:*:*:*:*:*:*

OR cpe:/a:rubyonrails:rails:6.0.3:-:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:113379	P	ruby2.7-rubygem-activerecord-5.2-5.2.6-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:113380	P	ruby2.7-rubygem-activerecord-6.0-6.0.4-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:111129	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-12
oval:org.opensuse.security:def:109539	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:102297	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:8395	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:8260	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:1739	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:91883	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:98833	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:8327	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:118635	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:96183	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:105523	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:102873	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:8373	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:111777	P	Security update for rubygem-activerecord-5_1 (Moderate)	2021-11-09
oval:org.opensuse.security:def:106786	P	ruby2.7-rubygem-activerecord-5.2-5.2.6-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:106787	P	ruby2.7-rubygem-activerecord-6.0-6.0.4-1.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:84676	P	Security update for rubygem-activerecord-4_2 (Moderate)	2021-09-30
oval:org.opensuse.security:def:88515	P	Security update for rubygem-activerecord-4_2 (Moderate)	2021-09-30

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