Vulnerability Name:

CVE-2020-35733 (CCN-195022)

Assigned:2020-12-27
Published:2021-01-15
Updated:2021-03-31
Summary:An issue was discovered in Erlang/OTP before 23.2.2. The ssl application 10.2 accepts and trusts an invalid X.509 certificate chain to a trusted root Certification Authority.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-295
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-35733

Source: CCN
Type: Erlang Web site
Patch Package OTP 23.2.2 Released

Source: CONFIRM
Type: Mailing List, Release Notes, Vendor Advisory
https://erlang.org/pipermail/erlang-questions/2021-January/100357.html

Source: XF
Type: UNKNOWN
erlang-otp-cve202035733-sec-bypass(195022)

Source: MISC
Type: Third Party Advisory
https://github.com/erlang/otp/releases

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-06cbd73fba

Source: MISC
Type: Product, Vendor Advisory
https://www.erlang.org/downloads

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.erlang.org/news

Vulnerable Configuration:Configuration 1:
  • cpe:/a:erlang:erlang/otp:*:*:*:*:*:*:*:* (Version < 23.2.2)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:112196
    P
    		erlang-24.0.5-2.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105727
    P
    		erlang-24.0.5-2.1 on GA media (Moderate)
    2021-10-01
    BACK
    erlang erlang/otp *
    fedoraproject fedora 33