VDB-124040 · CVE-2018-17019 · GCVE-0-2018-17019

Bro up to 2.5.5 IRC Protocol Name Command Parser IRC.cc input validation

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Bro up to 2.5.5. This affects an unknown part of the file analyzer/protocol/irc/IRC.cc of the component IRC Protocol Name Command Parser. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2018-17019. It is possible to initiate the attack remotely. There is no exploit available. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Bro up to 2.5.5. Affected by this issue is an unknown function of the file analyzer/protocol/irc/IRC.cc of the component IRC Protocol Name Command Parser. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.

The bug was discovered 09/13/2018. The weakness was published 09/13/2018 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-17019 since 09/13/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

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: 🔍

Patch: github.com

Timelineinfo

09/13/2018 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/13/2018 +0 days 🔍
09/15/2018 +2 days 🔍
05/16/2023 +1704 days 🔍

Sourcesinfo

Advisory: c2b18849f8bb833253538f5dfedb4ed1dc176a30
Status: Not defined

CVE: CVE-2018-17019 (🔍)
GCVE (CVE): GCVE-0-2018-17019
GCVE (VulDB): GCVE-100-124040

Entryinfo

Created: 09/15/2018 07:48 AM
Updated: 05/16/2023 10:11 AM
Changes: 09/15/2018 07:48 AM (55), 03/23/2020 07:28 PM (1), 05/16/2023 10:11 AM (4)
Complete: 🔍
Cache ID: 18:D0F:40