7.5
HIGH
CVE-2022-26498
Asterisk STIR/SHAKEN Archive Extraction Denial of Service Vulnerability
Description

An issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it is possible to download files that are not certificates. These files could be much larger than what one would expect to download, leading to Resource Exhaustion. This is fixed in 16.25.2, 18.11.2, and 19.3.2.

INFO

Published Date :

April 15, 2022, 5:15 a.m.

Last Modified :

May 4, 2023, 5:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2022-26498 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 Debian debian_linux
1 Digium asterisk
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-2022-26498.

URL Resource
http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.html Patch Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/172139/Shannon-Baseband-chatroom-SDP-Attribute-Memory-Corruption.html
https://downloads.asterisk.org/pub/security/ Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-001.html Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html Mailing List Third Party Advisory
https://www.debian.org/security/2022/dsa-5285 Third Party Advisory

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-2022-26498 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-26498 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]

    May. 04, 2023

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/172139/Shannon-Baseband-chatroom-SDP-Attribute-Memory-Corruption.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Jan. 27, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html Mailing List, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2022/dsa-5285 No Types Assigned https://www.debian.org/security/2022/dsa-5285 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 18, 2022

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2022/dsa-5285 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 17, 2022

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 22, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.html No Types Assigned http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.html Patch, Third Party Advisory, VDB Entry
    Changed Reference Type https://downloads.asterisk.org/pub/security/ No Types Assigned https://downloads.asterisk.org/pub/security/ Vendor Advisory
    Changed Reference Type https://downloads.asterisk.org/pub/security/AST-2022-001.html No Types Assigned https://downloads.asterisk.org/pub/security/AST-2022-001.html Patch, Vendor Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 16.15.0 up to (including) 16.25.1 *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 18.0 up to (excluding) 18.11.2 *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 19.0.0 up to (including) 19.3.1
  • CVE Modified by [email protected]

    Apr. 15, 2022

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/166744/Asterisk-Project-Security-Advisory-AST-2022-001.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-2022-26498 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-2022-26498 weaknesses.

Exploit Prediction

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

4.11 }} 1.17%

score

0.92225

percentile

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