CVE-2020-15598
Trustwave ModSecurity Regular Expression Denial of Service
Description
Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request. NOTE: The discoverer reports "Trustwave has signaled they are disputing our claims." The CVE suggests that there is a security issue with how ModSecurity handles regular expressions that can result in a Denial of Service condition. The vendor does not consider this as a security issue because1) there is no default configuration issue here. An attacker would need to know that a rule using a potentially problematic regular expression was in place, 2) the attacker would need to know the basic nature of the regular expression itself to exploit any resource issues. It's well known that regular expression usage can be taxing on system resources regardless of the use case. It is up to the administrator to decide on when it is appropriate to trade resources for potential security benefit
INFO
Published Date :
Oct. 6, 2020, 2:15 p.m.
Last Modified :
Aug. 4, 2024, 2:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-15598 has a 18 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2020-15598.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/159185/ModSecurity-3.0.x-Denial-Of-Service.html | Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2020/Sep/32 | Mailing List Third Party Advisory |
| https://coreruleset.org/20200914/cve-2020-15598/ | Exploit Patch Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4765 | Third Party Advisory |
| https://www.modsecurity.org | Product Vendor 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).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15598 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15598 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]
Aug. 04, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 11, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 21, 2024
Action Type Old Value New Value Added Tag MITRE disputed -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description ** DISPUTED ** Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request. NOTE: The discoverer reports "Trustwave has signaled they are disputing our claims." The CVE suggests that there is a security issue with how ModSecurity handles regular expressions that can result in a Denial of Service condition. The vendor does not consider this as a security issue because1) there is no default configuration issue here. An attacker would need to know that a rule using a potentially problematic regular expression was in place, 2) the attacker would need to know the basic nature of the regular expression itself to exploit any resource issues. It's well known that regular expression usage can be taxing on system resources regardless of the use case. It is up to the administrator to decide on when it is appropriate to trade resources for potential security benefit. Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request. NOTE: The discoverer reports "Trustwave has signaled they are disputing our claims." The CVE suggests that there is a security issue with how ModSecurity handles regular expressions that can result in a Denial of Service condition. The vendor does not consider this as a security issue because1) there is no default configuration issue here. An attacker would need to know that a rule using a potentially problematic regular expression was in place, 2) the attacker would need to know the basic nature of the regular expression itself to exploit any resource issues. It's well known that regular expression usage can be taxing on system resources regardless of the use case. It is up to the administrator to decide on when it is appropriate to trade resources for potential security benefit -
Initial Analysis by [email protected]
Oct. 14, 2020
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/159185/ModSecurity-3.0.x-Denial-Of-Service.html No Types Assigned http://packetstormsecurity.com/files/159185/ModSecurity-3.0.x-Denial-Of-Service.html Third Party Advisory, VDB Entry Changed Reference Type http://seclists.org/fulldisclosure/2020/Sep/32 No Types Assigned http://seclists.org/fulldisclosure/2020/Sep/32 Mailing List, Third Party Advisory Changed Reference Type https://coreruleset.org/20200914/cve-2020-15598/ No Types Assigned https://coreruleset.org/20200914/cve-2020-15598/ Exploit, Patch, Third Party Advisory Changed Reference Type https://www.debian.org/security/2020/dsa-4765 No Types Assigned https://www.debian.org/security/2020/dsa-4765 Third Party Advisory Changed Reference Type https://www.modsecurity.org No Types Assigned https://www.modsecurity.org Product, Vendor Advisory Added CWE NIST CWE-835 Added CPE Configuration OR *cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (including) 3.0.4 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15598 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-2020-15598
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.68 }} -0.31%
score
0.87273
percentile