CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.9 | $0-$5k | 0.00 |
A vulnerability was found in Asterisk (Communications System) (version unknown). It has been rated as problematic. This issue affects an unknown function of the component Connection Handler. The manipulation as part of a SIP INVITE Message leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is availability. The summary by CVE is:
An issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. res_pjsip allows remote authenticated users to crash Asterisk (segmentation fault) by sending a number of SIP INVITE messages on a TCP or TLS connection and then suddenly closing the connection.
The bug was discovered 02/21/2018. The weakness was disclosed 02/22/2018 (Website). It is possible to read the advisory at downloads.asterisk.org. The identification of this vulnerability is CVE-2018-7286 since 02/21/2018. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation requires a simple authentication. Technical details are unknown but a public exploit is available.
The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 107100 (Asterisk 15.x < 15.2.2 Multiple Vulnerabilities (AST-2018-001 - AST-2018-006)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371280 (Asterisk Multiple Vulnerabilities (AST-2018-002, AST-2018-003,AST-2018-004,AST-2018-005)).
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (107100) and Exploit-DB (44181). The entries 113685, 113686, 113688 and 114397 are pretty similar.
Product
Type
Name
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB Meta Temp Score: 5.2
VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.5
NVD Vector: 🔍
CVSSv2
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: 🔍
Exploiting
Class: Data processingCWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 107100
Nessus Name: Asterisk 15.x < 15.2.2 Multiple Vulnerabilities (AST-2018-001 - AST-2018-006)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 903221
OpenVAS Name: Asterisk Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
02/21/2018 🔍02/21/2018 🔍
02/21/2018 🔍
02/21/2018 🔍
02/21/2018 🔍
02/22/2018 🔍
02/22/2018 🔍
03/02/2018 🔍
02/04/2021 🔍
Sources
Advisory: downloads.asterisk.orgResearcher: Sandro Gauci
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-7286 (🔍)
OVAL: 🔍
SecurityTracker: 1040417
SecurityFocus: 103129 - Multiple Asterisk Products CVE-2018-7286 Denial of Service Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 02/22/2018 09:52Updated: 02/04/2021 14:42
Changes: 02/22/2018 09:52 (73), 01/07/2020 17:46 (9), 02/04/2021 14:38 (3), 02/04/2021 14:42 (1)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.