7.5
HIGH
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 :

Nov. 21, 2024, 5:05 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-15598 has a 19 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-2020-15598 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 Trustwave modsecurity
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
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).

None

Updated: 4 weeks, 1 day ago
0 stars 0 fork 0 watcher
Born at : Nov. 25, 2024, 11:20 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 3 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Sept. 15, 2024, 6:28 a.m. This repo has been linked 20 different CVEs too.

None

Go Shell HTML PHP

Updated: 11 months ago
0 stars 0 fork 0 watcher
Born at : Nov. 1, 2023, 9:55 p.m. This repo has been linked 20 different CVEs too.

None

Updated: 1 year, 4 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 3, 2023, 2:02 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 4 months, 3 weeks ago
3 stars 1 fork 1 watcher
Born at : March 15, 2023, 5:48 p.m. This repo has been linked 20 different CVEs too.

None

Updated: 3 months, 2 weeks ago
6 stars 0 fork 0 watcher
Born at : Jan. 29, 2023, 8:30 p.m. This repo has been linked 20 different CVEs too.

None

Updated: 2 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 24, 2022, 6:04 p.m. This repo has been linked 20 different CVEs too.

Explore more than 2000 hacking articles saved over time as PDF. BROWSE HISTORY.

Updated: 1 month, 1 week ago
3 stars 0 fork 0 watcher
Born at : Oct. 2, 2022, 7:16 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 2 years, 2 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 27, 2021, 10:54 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 1 year, 7 months ago
1 stars 1 fork 1 watcher
Born at : July 26, 2021, 11:08 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 2 years, 4 months ago
2 stars 0 fork 0 watcher
Born at : April 17, 2021, 5:43 p.m. This repo has been linked 20 different CVEs too.

None

Updated: 1 year, 11 months ago
0 stars 0 fork 0 watcher
Born at : Feb. 25, 2021, 2:38 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 1 year, 3 months ago
5 stars 1 fork 1 watcher
Born at : Feb. 21, 2021, 2:46 p.m. This repo has been linked 20 different CVEs too.

None

Updated: 11 months, 3 weeks ago
6 stars 1 fork 1 watcher
Born at : Feb. 20, 2021, 8:37 a.m. This repo has been linked 20 different CVEs too.

None

Updated: 2 months, 1 week ago
17 stars 5 fork 5 watcher
Born at : Jan. 10, 2021, 7:10 p.m. This repo has been linked 20 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-2020-15598 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/159185/ModSecurity-3.0.x-Denial-Of-Service.html
    Added Reference http://seclists.org/fulldisclosure/2020/Sep/32
    Added Reference https://coreruleset.org/20200914/cve-2020-15598/
    Added Reference https://www.debian.org/security/2020/dsa-4765
    Added Reference https://www.modsecurity.org
  • 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:*:*:*:*:*:*:*
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-2020-15598 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.

0.57 }} -1.11%

score

0.77797

percentile

CVSS31 - Vulnerability Scoring System
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Attack Complexity
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