CVE-2018-7287 : An issue was discovered in res_http_websocket.c in Asterisk 15.x through 15.2.1.

An issue was discovered in res_http_websocket.c in Asterisk 15.x through 15.2.1. If the HTTP server is enabled (default is disabled), WebSocket payloads of size 0 are mishandled (with a busy loop).

Published 2018-02-22 00:29:01

Updated 2019-10-03 00:03:26

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2018-7287

Digium » Asterisk » Version: 15.2.1
cpe:2.3:a:digium:asterisk:15.2.1:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.4
cpe:2.3:a:digium:asterisk:15.1.4:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.2
cpe:2.3:a:digium:asterisk:15.1.2:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.0 Update RC2
cpe:2.3:a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.0 Update RC1
cpe:2.3:a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.0.0 Update RC1
cpe:2.3:a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.2.0 Update RC1
cpe:2.3:a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.2.0 Update RC2
cpe:2.3:a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.5
cpe:2.3:a:digium:asterisk:15.1.5:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.3
cpe:2.3:a:digium:asterisk:15.1.3:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.0
cpe:2.3:a:digium:asterisk:15.1.0:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.0.0 Update Beta1
cpe:2.3:a:digium:asterisk:15.0.0:beta1:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.2.0
cpe:2.3:a:digium:asterisk:15.2.0:*:*:*:*:*:*:*
Matching versions
Digium » Asterisk » Version: 15.1.1
cpe:2.3:a:digium:asterisk:15.1.1:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2018-7287

Top countries where our scanners detected CVE-2018-7287

Top open port discovered on systems with this issue 22

IPs affected by CVE-2018-7287 71

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-7287!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-7287

EPSS FAQ

16.84%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 96 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-7287

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.9	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	2.2	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-7287

CWE-754 Improper Check for Unusual or Exceptional Conditions

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-7287

http://downloads.digium.com/pub/security/AST-2018-006.html

AST-2018-006
Vendor Advisory
https://issues.asterisk.org/jira/browse/ASTERISK-27658

[ASTERISK-27658] WebSocket frames with 0 sized payload causes DoS - Digium/Asterisk JIRA
Vendor Advisory
http://www.securitytracker.com/id/1040419

Asterisk WebSocket Payload Processing Bug Lets Remote Authenticated Users Cause Denial of Service Conditions - SecurityTracker
Third Party Advisory;VDB Entry
http://www.securityfocus.com/bid/103120

Asterisk Open Source CVE-2018-7287 Denial of Service Vulnerability
Third Party Advisory;VDB Entry