CVE-2020-28242
Asterisk Open Source Denial of Service (DoS) Vulnerability
Description
An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.
INFO
Published Date :
Nov. 6, 2020, 6:15 a.m.
Last Modified :
Aug. 15, 2024, 12:44 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2020-28242
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.
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-2020-28242.
| URL | Resource |
|---|---|
| http://downloads.asterisk.org/pub/security/AST-2020-002.html | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUS54QTQCYKR36EIULYD544GXDA644HB/ |
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-2020-28242 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-28242 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.
-
CPE Deprecation Remap by [email protected]
Aug. 15, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 17.0 from (excluding) 17.8.1 OR *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 17.0 from (excluding) 17.8.1 -
CPE Deprecation Remap by [email protected]
Aug. 15, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 13.0 from (excluding) 13.37.1 OR *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 13.0 from (excluding) 13.37.1 -
CPE Deprecation Remap by [email protected]
Aug. 15, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 16.0 from (excluding) 16.14.1 OR *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 16.0 from (excluding) 16.14.1 -
CPE Deprecation Remap by [email protected]
Aug. 15, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 18.0 from (excluding) 18.0.1 OR *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 18.0 from (excluding) 18.0.1 -
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/QUS54QTQCYKR36EIULYD544GXDA644HB/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/QUS54QTQCYKR36EIULYD544GXDA644HB/ -
Modified Analysis by [email protected]
Jun. 05, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 03, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html [No Types Assigned] -
Modified Analysis by [email protected]
Jan. 01, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/QUS54QTQCYKR36EIULYD544GXDA644HB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/QUS54QTQCYKR36EIULYD544GXDA644HB/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 28, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/QUS54QTQCYKR36EIULYD544GXDA644HB/ [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 20, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://downloads.asterisk.org/pub/security/AST-2020-002.html No Types Assigned http://downloads.asterisk.org/pub/security/AST-2020-002.html Vendor Advisory Added CWE NIST CWE-674 Added CPE Configuration OR *cpe:2.3:a:asterisk:certified_asterisk:*:*:*:*:*:*:*:* versions up to (including) 16.8.0 *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.37.1 *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 16.0 up to (excluding) 16.14.1 *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 17.0 up to (excluding) 17.8.1 *cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* versions from (including) 18.0 up to (excluding) 18.0.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-28242 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-2020-28242
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.44 }} 0.22%
score
0.75262
percentile