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AUSCERT External Security Bulletin Redistribution
ESB-2017.2206
asterisk -- Unauthorized data disclosure and shell access
command injection in app_minivm
4 September 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: asterisk
Publisher: FreeBSD
Operating System: FreeBSD
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-14100 CVE-2017-14099 CVE-2017-14098
Original Bulletin:
http://www.vuxml.org/freebsd/c599f95c-8ee5-11e7-8be8-001999f8d30b.html
http://www.vuxml.org/freebsd/ec1df2a1-8ee6-11e7-8be8-001999f8d30b.html
Comment: This bulletin contains two (2) FreeBSD security advisories.
This advisory references vulnerabilities in products which run on
platforms other than FreeBSD. It is recommended that administrators
running asterisk check for an updated version of the software for
their operating system.
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asterisk -- Unauthorized data disclosure and shell access command injection in
app_minivm
Affected packages
asterisk11 < 11.25.2
asterisk13 < 13.17.1
Details
VuXML ID c599f95c-8ee5-11e7-8be8-001999f8d30b
Discovery 2017-08-31
Entry 2017-09-01
The Asterisk project reports:
AST-2017-005 - A change was made to the strict RTP support in the RTP stack to
better tolerate late media when a reinvite occurs. When combined with the
symmetric RTP support this introduced an avenue where media could be hijacked.
Instead of only learning a new address when expected the new code allowed a
new source address to be learned at all times.
AST-2017-006 - The app_minivm module has an "externnotify" program
configuration option that is executed by the MinivmNotify dialplan
application. The application uses the caller-id name and number as part of a
built string passed to the OS shell for interpretation and execution. Since
the caller-id name and number can come from an untrusted source, a crafted
caller-id name or number allows an arbitrary shell command injection.
References
CVE Name CVE-2017-14099
CVE Name CVE-2017-14100
URL https://downloads.asterisk.org/pub/security/AST-2017-005.html
URL https://downloads.asterisk.org/pub/security/AST-2017-006.html
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asterisk -- Remote Crash Vulerability in res_pjsip
Affected packages
asterisk13 < 13.17.1
Details
VuXML ID ec1df2a1-8ee6-11e7-8be8-001999f8d30b
Discovery 2017-08-31
Entry 2017-09-01
The Asterisk project reports:
A carefully crafted URI in a From, To or Contact header could cause Asterisk
to crash.
References
CVE Name CVE-2017-14098
URL https://downloads.asterisk.org/pub/security/AST-2017-007.html
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