BIRD Internet Routing Daemon up to 1.6.3 BGP Mask Expression resource consumption

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.
4.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in BIRD Internet Routing Daemon up to 1.6.3. Affected by this issue is some unknown functionality of the component BGP Mask Handler. The manipulation as part of Expression leads to resource consumption. This vulnerability is handled as CVE-2018-12066. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability classified as problematic was found in BIRD Internet Routing Daemon up to 1.6.3. Affected by this vulnerability is an unknown code of the component BGP Mask Handler. The manipulation as part of a Expression leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

BIRD Internet Routing Daemon before 1.6.4 allows local users to cause a denial of service (stack consumption and daemon crash) via BGP mask expressions in birdc.

The bug was discovered 06/07/2018. The weakness was published 06/08/2018 (Website). The advisory is shared at bird.network.cz. This vulnerability is known as CVE-2018-12066 since 06/08/2018. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 120498 (Fedora 29 : bird (2018-6aada550ca)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading to version 1.6.4 eliminates this vulnerability. A possible mitigation has been published 7 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (120498). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 120498
Nessus Name: Fedora 29 : bird (2018-6aada550ca)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: BIRD Internet Routing Daemon 1.6.4
Patch: gitlab.labs.nic.cz

Timelineinfo

06/07/2018 🔍
06/08/2018 +0 days 🔍
06/08/2018 +0 days 🔍
06/08/2018 +0 days 🔍
06/09/2018 +1 days 🔍
12/07/2018 +181 days 🔍
01/03/2019 +27 days 🔍
03/22/2023 +1539 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-6aada550ca
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-12066 (🔍)
GCVE (CVE): GCVE-0-2018-12066
GCVE (VulDB): GCVE-100-119305

Entryinfo

Created: 06/09/2018 10:27 AM
Updated: 03/22/2023 10:28 AM
Changes: 06/09/2018 10:27 AM (63), 02/17/2020 03:52 PM (10), 03/22/2023 10:22 AM (5), 03/22/2023 10:28 AM (1)
Complete: 🔍
Cache ID: 18:16C:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!