VDB-133929 · CVE-2019-11388 · Issue 1354

OWASP ModSecurity Core Rule Set up to 3.1.0 REQUEST-932-APPLICATION-ATTACK-RCE.conf incorrect regex ⚔ [Disputed]

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in OWASP ModSecurity Core Rule Set up to 3.1.0. It has been classified as problematic. This issue affects some unknown processing of the file /rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf. Performing a manipulation results in incorrect regex. This vulnerability is cataloged as CVE-2019-11388. It is possible to initiate the attack remotely. There is no exploit available. There is ongoing doubt regarding the real existence of this vulnerability.

Detailsinfo

A vulnerability classified as problematic has been found in OWASP ModSecurity Core Rule Set up to 3.1.0. This affects an unknown code block of the file /rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf. The manipulation with an unknown input leads to a incorrect regex vulnerability. CWE is classifying the issue as CWE-185. The product specifies a regular expression in a way that causes data to be improperly matched or compared. This is going to have an impact on availability. The summary by CVE is:

An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with nested repetition operators.

The bug was discovered 04/15/2019. The weakness was shared 04/21/2019. This vulnerability is uniquely identified as CVE-2019-11388 since 04/20/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-133932, VDB-133931, VDB-133930 and VDB-133928 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

OWASP

Name

ModSecurity Core Rule Set

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Incorrect regex
CWE: CWE-185 / CWE-697
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/15/2019 🔍
04/20/2019 +5 days 🔍
04/21/2019 +1 days 🔍
04/23/2019 +2 days 🔍
08/05/2024 +1931 days 🔍

Sourcesinfo

Advisory: 1354
Status: Not defined
Disputed: 🔍

CVE: CVE-2019-11388 (🔍)
GCVE (CVE): GCVE-0-2019-11388
GCVE (VulDB): GCVE-100-133929
scip Labs: https://www.scip.ch/en/?labs.20130913
See also: 🔍

Entryinfo

Created: 04/23/2019 08:45
Updated: 08/05/2024 02:02
Changes: 04/23/2019 08:45 (54), 06/01/2020 09:42 (1), 09/06/2023 10:44 (4), 06/12/2024 04:10 (15), 08/05/2024 02:02 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.