Vulnerability CVE-2021-29157

Vulnerability Name:

CVE-2021-29157 (CCN-204481)

Assigned:

2021-06-28

Published:

2021-06-28

Updated:

2021-09-20

Summary:

Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.

CVSS v3 Severity:

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

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

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

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

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

CWE-22

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2021-29157

Source: MISC
Type: Vendor Advisory
https://dovecot.org/security

Source: XF
Type: UNKNOWN
dovecot-cve202129157-sec-bypass(204481)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-208340a217

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-891c1ab1ac

Source: CCN
Type: oss-sec Mailing List, Mon, 28 Jun 2021 09:58:23 +0300
CVE-2021-29157: Dovecot oauth2 JWT local validation path traversal

Source: GENTOO
Type: Third Party Advisory
GLSA-202107-41

Source: CCN
Type: Dovecot Web site
Dovecot

Source: CONFIRM
Type: Mailing List, Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/06/28/1

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-29157

Vulnerable Configuration:

Configuration 1:

cpe:/a:dovecot:dovecot:*:*:*:*:*:*:*:* (Version >= 2.3.11 and < 2.3.14.1)

Configuration 2:

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

OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:dovecot:dovecot:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:8049	P	pam-devel-32bit-1.3.0-150000.6.61.1 on GA media (Moderate)	2023-06-20
oval:org.opensuse.security:def:7986	P	ant-1.10.12-150200.4.12.5 on GA media (Moderate)	2023-06-20
oval:org.opensuse.security:def:8038	P	log4j12-javadoc-1.2.17-4.9.1 on GA media (Moderate)	2023-06-20
oval:org.opensuse.security:def:7970	P	libxkbregistry-devel-1.3.0-150400.1.13 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3473	P	dnsmasq-2.78-18.9.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:95103	P	dovecot23-2.3.15-58.3 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:93132	P	(Important)	2022-05-03
oval:org.opensuse.security:def:99731	P	(Important)	2022-04-12
oval:org.opensuse.security:def:99487	P	(Moderate)	2022-02-18
oval:org.opensuse.security:def:112172	P	dovecot23-2.3.16-1.6 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:99686	P	(Moderate)	2021-10-20
oval:org.opensuse.security:def:105704	P	dovecot23-2.3.16-1.6 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:99994	P	(Critical)	2021-09-20
oval:org.opensuse.security:def:111042	P	Security update for dovecot23 (Moderate)	2021-09-04
oval:org.opensuse.security:def:99139	P	(Important)	2021-09-02
oval:org.opensuse.security:def:91994	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:111696	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:69075	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:98944	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:8833	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:92383	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:69531	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:99333	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:9391	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:92781	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:1626	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:69922	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:9782	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:118519	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:70473	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:102757	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:10333	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:96067	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:8645	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:92189	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:69138	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:9028	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:92582	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:102202	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:69723	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:99532	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:9583	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:92979	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:109423	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:70285	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:100041	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:10145	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:93285	P	Security update for dovecot23 (Moderate)	2021-08-31
oval:org.opensuse.security:def:111596	P	Security update for dovecot23 (Important)	2021-07-10
oval:org.opensuse.security:def:111462	P	Security update for dovecot23 (Important)	2021-06-25
oval:org.opensuse.security:def:9353	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:92736	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:1615	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:69877	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:97127	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:9737	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:93088	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:118503	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:70428	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:102741	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:10288	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:96051	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:8609	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:92146	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:97128	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:69127	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:99096	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:8985	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:92537	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:69678	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:9538	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:92935	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:109407	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:70247	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:97129	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:10107	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:93241	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:91951	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:69059	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:98901	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:8790	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:92338	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:69493	P	Security update for dovecot23 (Important)	2021-06-22
oval:org.opensuse.security:def:99288	P	Security update for dovecot23 (Important)	2021-06-22

BACK