Vulnerability Name:

CVE-2020-8086 (CCN-175394)

Assigned:2020-01-28
Published:2020-01-28
Updated:2020-02-04
Summary:The mod_auth_ldap and mod_auth_ldap2 Community Modules through 2020-01-27 for Prosody incompletely verify the XMPP address passed to the is_admin() function. This grants remote entities admin-only functionality if their username matches the username of a local admin.
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
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/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): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-863
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2020-8086

Source: XF
Type: UNKNOWN
prosody-cve20208086-priv-esc(175394)

Source: MISC
Type: Third Party Advisory
https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ldap/mod_auth_ldap.lua

Source: MISC
Type: Third Party Advisory
https://hg.prosody.im/prosody-modules/log/tip/mod_auth_ldap2/mod_auth_ldap2.lua

Source: CCN
Type: Prosody security advisory 2020-01-28
Prosody XMPP server

Source: CONFIRM
Type: Vendor Advisory
https://prosody.im/security/advisory_20200128/

Source: BUGTRAQ
Type: Mailing List, Third Party Advisory
20200203 [SECURITY] [DSA 4612-1] prosody-modules security update

Source: DEBIAN
Type: Third Party Advisory
DSA-4612

Vulnerable Configuration:Configuration 1:
  • cpe:/a:prosody:mod_auth_ldap:*:*:*:*:*:*:*:* (Version <= 2020-01-27)
  • OR cpe:/a:prosody:mod_auth_ldap2:*:*:*:*:*:*:*:* (Version <= 2020-01-27)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:prosody:prosody:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:202080860000000
    V
    		CVE-2020-8086 on Ubuntu 18.04 LTS (bionic) - medium.
    2020-01-28
    oval:com.ubuntu.xenial:def:202080860000000
    V
    		CVE-2020-8086 on Ubuntu 16.04 LTS (xenial) - medium.
    2020-01-28
    BACK
    prosody mod auth ldap *
    prosody mod auth ldap2 *
    debian debian linux 9.0
    debian debian linux 10.0
    prosody prosody *