7.5
HIGH
CVE-2017-9023
StrongSwan ASN.1 CHOICE Type Deserialization Denial of Service
Description

The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.

INFO

Published Date :

June 8, 2017, 4:29 p.m.

Last Modified :

Nov. 21, 2024, 3:35 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2017-9023 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 Ietf internet_key_exchange
1 Strongswan strongswan
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-9023.

URL Resource
http://www.debian.org/security/2017/dsa-3866 Third Party Advisory
http://www.securityfocus.com/bid/98756 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3301-1 Third Party Advisory
https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html
http://www.debian.org/security/2017/dsa-3866 Third Party Advisory
http://www.securityfocus.com/bid/98756 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3301-1 Third Party Advisory
https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html

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).

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

The following list is the news that have been mention CVE-2017-9023 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-9023 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2017/dsa-3866
    Added Reference http://www.securityfocus.com/bid/98756
    Added Reference http://www.ubuntu.com/usn/USN-3301-1
    Added Reference https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html
  • 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://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html [No types assigned]
    Removed Reference MITRE https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9023).html
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-19 NVD-CWE-noinfo CWE-835
  • CVE Modified by [email protected]

    Aug. 13, 2018

    Action Type Old Value New Value
    Removed Reference https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html [Vendor Advisory]
    Added Reference https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9023).html [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 21, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.debian.org/security/2017/dsa-3866 No Types Assigned http://www.debian.org/security/2017/dsa-3866 Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/98756 No Types Assigned http://www.securityfocus.com/bid/98756 Third Party Advisory, VDB Entry
    Changed Reference Type https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html No Types Assigned https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html Vendor Advisory
    Changed Reference Type http://www.ubuntu.com/usn/USN-3301-1 No Types Assigned http://www.ubuntu.com/usn/USN-3301-1 Third Party Advisory
    Added CWE CWE-19
    Added CPE Configuration OR *cpe:2.3:a:strongswan:strongswan:5.5.2:*:*:*:*:*:*:* (and previous)
  • CVE Modified by [email protected]

    Jun. 09, 2017

    Action Type Old Value New Value
    Removed Reference https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9023).html [No Types Assigned]
    Added Reference https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html [No Types Assigned]
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-2017-9023 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-2017-9023 weaknesses.

Exploit Prediction

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

0.46 }} -0.04%

score

0.74935

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability