Vulnerability Name:

CVE-2019-3890 (CCN-164688)

Assigned:2019-02-15
Published:2019-02-15
Updated:2019-10-09
Summary:It was discovered evolution-ews before 3.31.3 does not check the validity of SSL certificates. An attacker could abuse this flaw to get confidential information by tricking the user into connecting to a fake server without the user noticing the difference.
CVSS v3 Severity:8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N)
7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
3.7 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.2 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
8.1 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N)
7.1 High (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
2.6 Low (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-295
CWE-295
CWE-296
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2019-3890

Source: REDHAT
Type: UNKNOWN
RHSA-2019:3699

Source: CCN
Type: Red Hat Bugzilla – Bug 1678313
(CVE-2019-3890) - CVE-2019-3890 evolution-ews: all certificate errors ignored if configured to ignore an initial error in gnome-online-accounts creation resulting in the connection open to being viewed and modified.

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3890

Source: XF
Type: UNKNOWN
gnome-evolutionews-cve20193890-info-disc(164688)

Source: CCN
Type: evolution-ews GitLab
SSL Certificates are not validated

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://gitlab.gnome.org/GNOME/evolution-ews/issues/27

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnome:evolution-ews:*:*:*:*:*:*:*:* (Version < 3.31.3)

    • Configuration 2:
  • cpe:/o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:gnome:evolution-ews:3.31.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20201080
    P
    		RHSA-2020:1080: evolution security and bug fix update (Moderate)
    2020-03-31
    oval:com.redhat.rhsa:def:20193699
    P
    		RHSA-2019:3699: evolution security and bug fix update (Moderate)
    2019-11-05
    oval:com.ubuntu.disco:def:201938900000000
    V
    		CVE-2019-3890 on Ubuntu 19.04 (disco) - untriaged.
    2019-08-01
    oval:com.ubuntu.bionic:def:201938900000000
    V
    		CVE-2019-3890 on Ubuntu 18.04 LTS (bionic) - untriaged.
    2019-08-01
    oval:com.ubuntu.xenial:def:201938900000000
    V
    		CVE-2019-3890 on Ubuntu 16.04 LTS (xenial) - untriaged.
    2019-08-01
    oval:com.ubuntu.bionic:def:20193890000
    V
    		CVE-2019-3890 on Ubuntu 18.04 LTS (bionic) - untriaged.
    2019-04-04
    oval:com.ubuntu.cosmic:def:201938900000000
    V
    		CVE-2019-3890 on Ubuntu 18.10 (cosmic) - untriaged.
    2019-04-04
    oval:com.ubuntu.cosmic:def:20193890000
    V
    		CVE-2019-3890 on Ubuntu 18.10 (cosmic) - untriaged.
    2019-04-04
    oval:com.ubuntu.trusty:def:20193890000
    V
    		CVE-2019-3890 on Ubuntu 14.04 LTS (trusty) - untriaged.
    2019-04-04
    oval:com.ubuntu.xenial:def:20193890000
    V
    		CVE-2019-3890 on Ubuntu 16.04 LTS (xenial) - untriaged.
    2019-04-04
    BACK
    gnome evolution-ews *
    redhat enterprise linux 7.0
    redhat enterprise linux 8.0
    gnome evolution-ews 3.31.2