CVE-2017-17850
Quick assessment
Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Digium Asterisk是美国Digium公司的一套开源的电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。PJSIP Channel Driver是其中的一个PJSIP驱动程序。 Digium Asterisk 13.18.4之前的版本、14.7.4及之前的版本和15.1.4及之前的版本中的PJSIP Channel Driver存在安全漏洞。远程攻击者可通过发送缺少联系包头的特制SIP数据利用该漏洞造成拒绝服务（崩溃）。
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I. Basic Information for CVE-2017-17850
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and older, and 13.18-cert1 and older. A select set of SIP messages create a dialog in Asterisk. Those SIP messages must contain a contact header. For those messages, if the header was not present and the PJSIP channel driver was used, Asterisk would crash. The severity of this vulnerability is somewhat mitigated if authentication is enabled. If authentication is enabled, a user would have to first be authorized before reaching the crash point.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Digium Asterisk PJSIP Channel Driver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Digium Asterisk是美国Digium公司的一套开源的电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。PJSIP Channel Driver是其中的一个PJSIP驱动程序。 Digium Asterisk 13.18.4之前的版本、14.7.4及之前的版本和15.1.4及之前的版本中的PJSIP Channel Driver存在安全漏洞。远程攻击者可通过发送缺少联系包头的特制SIP数据利用该漏洞造成拒绝服务（崩溃）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2017-17850
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2017-17850 (2)
Other References for CVE-2017-17850 (2)
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https://issues.asterisk.org/jira/browse/ASTERISK-27480 x_refsource_CONFIRM
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http://downloads.asterisk.org/pub/security/AST-2017-014.html x_refsource_CONFIRM
Same Patch Batch · n/a · 2017-12-23 · 16 CVEs total
| CVE-2017-17868 | Liferay Portal 跨站脚本漏洞 | |
| CVE-2017-17869 | WordPress mgl-instagram-gallery插件跨站脚本漏洞 | |
| CVE-2017-17870 | Joomla! JBuildozer extension SQL注入漏洞 | |
| CVE-2017-16897 | Auth0 passport-wsfed-saml2 library 安全漏洞 | |
| CVE-2017-17862 | Linux kernel 安全漏洞 | |
| CVE-2017-17863 | Linux kernel 安全漏洞 | |
| CVE-2017-17864 | Linux kernel 安全漏洞 | |
| CVE-2017-17866 | Artifex MuPDF 安全漏洞 | |
| CVE-2017-17852 | Linux kernel 安全漏洞 | |
| CVE-2017-17853 | Linux kernel 安全漏洞 | |
| CVE-2017-17854 | Linux kernel 安全漏洞 | |
| CVE-2017-17855 | Linux kernel 安全漏洞 | |
| CVE-2017-17856 | Linux kernel 安全漏洞 | |
| CVE-2017-17857 | Linux kernel 安全漏洞 | |
| CVE-2017-14022 | 多款Rockwell Automation产品FactoryTalk Alarms and Events 输入验证漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2017-17850
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