Vulnerability CVE-2019-13917

Vulnerability Name:

CVE-2019-13917 (CCN-164294)

Assigned:

2019-07-18

Published:

2019-07-18

Updated:

2019-09-07

Summary:

Exim 4.85 through 4.92 (fixed in 4.92.1) allows remote code execution as root in some unusual configurations that use the ${sort } expansion for items that can be controlled by an attacker (e.g., $local_part or $domain).

CVSS v3 Severity:

9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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): High Integrity (I): High Availibility (A): High

9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

CWE-19

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2019-13917

Source: CONFIRM
Type: Patch, Vendor Advisory
http://exim.org/static/doc/security/CVE-2019-13917.txt

Source: MLIST
Type: Third Party Advisory
[oss-security] 20190726 Re: CVE-2019-13917 OVE-20190718-0006: Exim: security release ahead

Source: CCN
Type: Red Hat Bugzilla Bug 1731412
(CVE-2019-13917) - CVE-2019-13917 exim: ${sort} in configuration leads to privilege escalation

Source: XF
Type: UNKNOWN
exim-cve201913917-priv-esc(164294)

Source: BUGTRAQ
Type: Third Party Advisory
20190730 [SECURITY] [DSA 4488-1] exim4 security update

Source: GENTOO
Type: UNKNOWN
GLSA-201909-06

Source: DEBIAN
Type: Third Party Advisory
DSA-4488

Source: CCN
Type: Exim Web site
CVE-2019-13917

Vulnerable Configuration:

Configuration 1:

cpe:/a:exim:exim:*:*:*:*:*:*:*:* (Version >= 4.85 and <= 4.92)

Configuration 2:

cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/a:exim:exim:4.87:*:*:*:*:*:*:*

OR cpe:/a:exim:exim:4.91:*:*:*:*:*:*:*

OR cpe:/a:exim:exim:4.92:-:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:201913917	V	CVE-2019-13917	2022-06-30
oval:org.opensuse.security:def:112207	P	exim-4.94.2-4.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:100366	P	(Moderate)	2021-12-16
oval:org.opensuse.security:def:105738	P	exim-4.94.2-4.2 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:63412	P	apache-commons-beanutils-1.9.4-1.68 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:62366	P	zypper-1.14.43-3.20.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:63048	P	zlib-devel-32bit-1.2.11-3.21.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:74301	P	Security update for webkit2gtk3 (Important)	2021-08-03
oval:org.opensuse.security:def:62846	P	build-20180329-1.10 on GA media (Moderate)	2021-06-08
oval:org.opensuse.security:def:93653	P	Security update for exim (Critical)	2021-05-20
oval:org.opensuse.security:def:107032	P	Security update for exim (Critical)	2021-05-20
oval:org.opensuse.security:def:11216	P	Security update for exim (Critical)	2021-05-20
oval:org.opensuse.security:def:62567	P	libmpg123-0-1.25.10-1.38 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:62367	P	containerd-0.2.9+gitr706_06b9cb351610-3.31 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:62390	P	MozillaFirefox-52.7.3-1.35 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63186	P	stunnel-5.44-1.29 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63979	P	Security update for java-1_8_0-ibm (Moderate)	2020-12-01
oval:org.opensuse.security:def:74175	P	Security update for tomcat (Moderate)	2020-12-01
oval:org.opensuse.security:def:64081	P	Security update for java-1_7_0-openjdk (Important)	2020-12-01
oval:org.opensuse.security:def:63739	P	Security update for polkit (Moderate)	2020-12-01
oval:org.opensuse.security:def:64123	P	Security update for samba (Moderate)	2020-12-01
oval:org.opensuse.security:def:63873	P	Security update for webkit2gtk3 (Important)	2020-12-01
oval:org.opensuse.security:def:64235	P	curl on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:109925	P	Security update for exim (Important)	2019-07-30
oval:com.ubuntu.bionic:def:2019139170000000	V	CVE-2019-13917 on Ubuntu 18.04 LTS (bionic) - medium.	2019-07-25
oval:com.ubuntu.xenial:def:2019139170000000	V	CVE-2019-13917 on Ubuntu 16.04 LTS (xenial) - medium.	2019-07-25
oval:com.ubuntu.disco:def:2019139170000000	V	CVE-2019-13917 on Ubuntu 19.04 (disco) - medium.	2019-07-25

BACK