5.3
MEDIUM
CVE-2020-7042
OpenFortiVPN OpenSSL Certificate Validation Bypass
Description

An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because the hostname check operates on uninitialized memory. The outcome is that a valid certificate is never accepted (only a malformed certificate may be accepted).

INFO

Published Date :

Feb. 27, 2020, 6:15 p.m.

Last Modified :

Nov. 7, 2023, 3:25 a.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-7042 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-7042 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Opensuse leap
2 Opensuse backports_sle
1 Fedoraproject fedora
1 Openfortivpn_project openfortivpn

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 2 months, 2 weeks ago
5 stars 0 fork 0 watcher
Born at : Feb. 23, 2023, 5:42 a.m. This repo has been linked 455 different CVEs too.

None

Python

Updated: 2 years, 5 months ago
4 stars 1 fork 1 watcher
Born at : March 9, 2022, 3:56 p.m. This repo has been linked 4 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-7042 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-7042 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-295 CWE-295 CWE-908
  • Modified Analysis by [email protected]

    Oct. 09, 2020

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html Mailing List, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html Mailing List, Third Party Advisory
    Changed Reference Type https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3 No Types Assigned https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3 Patch, Third Party Advisory
    Changed Reference Type https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Third Party Advisory https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Patch, Third Party Advisory
    Changed CPE Configuration AND OR *cpe:2.3:a:openfortivpn_project:openfortivpn:1.11.0:*:*:*:*:*:*:* OR cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2 AND OR *cpe:2.3:a:openfortivpn_project:openfortivpn:*:*:*:*:*:*:*:* versions up to (excluding) 1.12.0 OR cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions up to (including) 1.0.2
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 24, 2020

    Action Type Old Value New Value
    Added Reference https://github.com/adrienverge/openfortivpn/commit/9eee997d599a89492281fc7ffdd79d88cd61afc3 [No Types Assigned]
  • Modified Analysis by [email protected]

    Sep. 21, 2020

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html Third Party Advisory
    Changed Reference Type https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Patch, Third Party Advisory https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Third Party Advisory
    Changed Reference Type https://github.com/adrienverge/openfortivpn/issues/536 Third Party Advisory https://github.com/adrienverge/openfortivpn/issues/536 Issue Tracking, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 16, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CKNKSGBVYGRRVRLFEFBEKUEJYJR5LWOF/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 06, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/FF6HYIBREQGATRM5COF57MRQWKOKCWZ3/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 06, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/SRVVNXCNTNMPCIAZIVR4FAGYCSU53FNA/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 05, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00011.html [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 05, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 03, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 No Types Assigned https://github.com/adrienverge/openfortivpn/commit/cd9368c6a1b4ef91d77bb3fdbe2e5bc34aa6f4c4 Patch, Third Party Advisory
    Changed Reference Type https://github.com/adrienverge/openfortivpn/issues/536 No Types Assigned https://github.com/adrienverge/openfortivpn/issues/536 Third Party Advisory
    Added CWE NIST CWE-295
    Added CPE Configuration AND OR *cpe:2.3:a:openfortivpn_project:openfortivpn:1.11.0:*:*:*:*:*:*:* OR cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-7042 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-7042 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.18 }} -0.00%

score

0.55546

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability