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CVE-2017-14099

In res/res_rtp_asterisk.c in Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized data disclosure (media takeover in the RTP stack) is possible with careful timing by an attacker. The "strictrtp" option in rtp.conf enables a feature of the RTP stack that learns the source address of media for a session and drops any packets that do not originate from the expected address. This option is enabled by default in Asterisk 11 and above. The "nat" and "rtp_symmetric" options (for chan_sip and chan_pjsip, respectively) enable symmetric RTP support in the RTP stack. This uses the source address of incoming media as the target address of any sent media. This option is not enabled by default, but is commonly enabled to handle devices behind NAT. 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. If a flood of RTP traffic was received, the strict RTP support would allow the new address to provide media, and (with symmetric RTP enabled) outgoing traffic would be sent to this new address, allowing the media to be hijacked. Provided the attacker continued to send traffic, they would continue to receive traffic as well.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 2 products from digium, from digium organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-09-02T16:29:00.287

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	digium	asterisk	13.0.0	Yes
Application	digium	asterisk	13.0.0	Yes
Application	digium	asterisk	13.0.0	Yes
Application	digium	asterisk	13.0.0	Yes
Application	digium	asterisk	13.0.1	Yes
Application	digium	asterisk	13.0.2	Yes
Application	digium	asterisk	13.1.0	Yes
Application	digium	asterisk	13.1.0	Yes
Application	digium	asterisk	13.1.0	Yes
Application	digium	asterisk	13.1.1	Yes
Application	digium	asterisk	13.2.0	Yes
Application	digium	asterisk	13.2.0	Yes
Application	digium	asterisk	13.2.1	Yes
Application	digium	asterisk	13.3.0	Yes
Application	digium	asterisk	13.3.2	Yes
Application	digium	asterisk	13.4.0	Yes
Application	digium	asterisk	13.4.0	Yes
Application	digium	asterisk	13.5.0	Yes
Application	digium	asterisk	13.5.0	Yes
Application	digium	asterisk	13.6.0	Yes
Application	digium	asterisk	13.7.0	Yes
Application	digium	asterisk	13.7.0	Yes
Application	digium	asterisk	13.7.1	Yes
Application	digium	asterisk	13.7.2	Yes
Application	digium	asterisk	13.8.0	Yes
Application	digium	asterisk	13.8.0	Yes
Application	digium	asterisk	13.8.1	Yes
Application	digium	asterisk	13.8.2	Yes
Application	digium	asterisk	13.9.0	Yes
Application	digium	asterisk	13.9.1	Yes
Application	digium	asterisk	13.10.0	Yes
Application	digium	asterisk	13.10.0	Yes
Application	digium	asterisk	13.11.0	Yes
Application	digium	asterisk	13.11.1	Yes
Application	digium	asterisk	13.11.2	Yes
Application	digium	asterisk	13.12	Yes
Application	digium	asterisk	13.12.0	Yes
Application	digium	asterisk	13.12.1	Yes
Application	digium	asterisk	13.12.2	Yes
Application	digium	asterisk	13.13	Yes
Application	digium	asterisk	13.13.0	Yes
Application	digium	asterisk	13.13.1	Yes
Application	digium	asterisk	13.14.0	Yes
Application	digium	asterisk	13.14.0	Yes
Application	digium	asterisk	13.14.0	Yes
Application	digium	asterisk	13.14.1	Yes
Application	digium	asterisk	13.15.0	Yes
Application	digium	asterisk	13.15.0	Yes
Application	digium	asterisk	13.15.0	Yes
Application	digium	asterisk	13.15.0	Yes
Application	digium	asterisk	13.15.1	Yes
Application	digium	asterisk	13.16.0	Yes
Application	digium	asterisk	13.16.0	Yes
Application	digium	asterisk	13.16.0	Yes
Application	digium	asterisk	13.17.0	Yes
Application	digium	asterisk	13.17.0	Yes
Application	digium	asterisk	14.0	Yes
Application	digium	asterisk	14.0.0	Yes
Application	digium	asterisk	14.0.0	Yes
Application	digium	asterisk	14.0.0	Yes
Application	digium	asterisk	14.0.0	Yes
Application	digium	asterisk	14.0.0	Yes
Application	digium	asterisk	14.0.1	Yes
Application	digium	asterisk	14.0.2	Yes
Application	digium	asterisk	14.1	Yes
Application	digium	asterisk	14.01	Yes
Application	digium	asterisk	14.1.0	Yes
Application	digium	asterisk	14.1.1	Yes
Application	digium	asterisk	14.1.2	Yes
Application	digium	asterisk	14.02	Yes
Application	digium	asterisk	14.2	Yes
Application	digium	asterisk	14.2.0	Yes
Application	digium	asterisk	14.2.1	Yes
Application	digium	asterisk	14.3.0	Yes
Application	digium	asterisk	14.3.0	Yes
Application	digium	asterisk	14.3.0	Yes
Application	digium	asterisk	14.3.1	Yes
Application	digium	asterisk	14.4.0	Yes
Application	digium	asterisk	14.4.0	Yes
Application	digium	asterisk	14.4.0	Yes
Application	digium	asterisk	14.4.0	Yes
Application	digium	asterisk	14.4.1	Yes
Application	digium	asterisk	14.5.0	Yes
Application	digium	asterisk	14.5.0	Yes
Application	digium	asterisk	14.5.0	Yes
Application	digium	asterisk	14.6.0	Yes
Application	digium	asterisk	14.6.0	Yes
Application	digium	asterisk	11.0.0	Yes
Application	digium	asterisk	11.0.0	Yes
Application	digium	asterisk	11.0.0	Yes
Application	digium	asterisk	11.0.0	Yes
Application	digium	asterisk	11.0.0	Yes
Application	digium	asterisk	11.0.1	Yes
Application	digium	asterisk	11.0.2	Yes
Application	digium	asterisk	11.1.0	Yes
Application	digium	asterisk	11.1.0	Yes
Application	digium	asterisk	11.1.0	Yes
Application	digium	asterisk	11.1.0	Yes
Application	digium	asterisk	11.1.1	Yes
Application	digium	asterisk	11.1.2	Yes
Application	digium	asterisk	11.2.0	Yes
Application	digium	asterisk	11.2.1	Yes
Application	digium	asterisk	11.2.2	Yes
Application	digium	asterisk	11.4.0	Yes
Application	digium	asterisk	11.6.0	Yes
Application	digium	asterisk	11.6.0	Yes
Application	digium	asterisk	11.6.0	Yes
Application	digium	asterisk	11.6.1	Yes
Application	digium	asterisk	11.7.0	Yes
Application	digium	asterisk	11.7.0	Yes
Application	digium	asterisk	11.7.0	Yes
Application	digium	asterisk	11.8.0	Yes
Application	digium	asterisk	11.8.0	Yes
Application	digium	asterisk	11.8.0	Yes
Application	digium	asterisk	11.8.0	Yes
Application	digium	asterisk	11.8.1	Yes
Application	digium	asterisk	11.9.0	Yes
Application	digium	asterisk	11.9.0	Yes
Application	digium	asterisk	11.9.0	Yes
Application	digium	asterisk	11.9.0	Yes
Application	digium	asterisk	11.10.0	Yes
Application	digium	asterisk	11.10.0	Yes
Application	digium	asterisk	11.10.1	Yes
Application	digium	asterisk	11.10.1	Yes
Application	digium	asterisk	11.10.2	Yes
Application	digium	asterisk	11.11.0	Yes
Application	digium	asterisk	11.11.0	Yes
Application	digium	asterisk	11.12.0	Yes
Application	digium	asterisk	11.12.0	Yes
Application	digium	asterisk	11.12.1	Yes
Application	digium	asterisk	11.13.0	Yes
Application	digium	asterisk	11.13.0	Yes
Application	digium	asterisk	11.13.1	Yes
Application	digium	asterisk	11.14.0	Yes
Application	digium	asterisk	11.14.0	Yes
Application	digium	asterisk	11.14.0	Yes
Application	digium	asterisk	11.14.1	Yes
Application	digium	asterisk	11.14.2	Yes
Application	digium	asterisk	11.15.0	Yes
Application	digium	asterisk	11.15.0	Yes
Application	digium	asterisk	11.15.1	Yes
Application	digium	asterisk	11.16.0	Yes
Application	digium	asterisk	11.17.0	Yes
Application	digium	asterisk	11.17.1	Yes
Application	digium	asterisk	11.18.0	Yes
Application	digium	asterisk	11.18.0	Yes
Application	digium	asterisk	11.19.0	Yes
Application	digium	asterisk	11.20.0	Yes
Application	digium	asterisk	11.21.0	Yes
Application	digium	asterisk	11.21.0	Yes
Application	digium	asterisk	11.21.1	Yes
Application	digium	asterisk	11.21.2	Yes
Application	digium	asterisk	11.22.0	Yes
Application	digium	asterisk	11.22.0	Yes
Application	digium	asterisk	11.23.0	Yes
Application	digium	asterisk	11.23.0	Yes
Application	digium	asterisk	11.23.1	Yes
Application	digium	asterisk	11.24.0	Yes
Application	digium	asterisk	11.24.1	Yes
Application	digium	asterisk	11.25.0	Yes
Application	digium	asterisk	11.25.1	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	11.6	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes
Application	digium	certified_asterisk	13.13	Yes

References

http://downloads.asterisk.org/pub/security/AST-2017-005.html Vendor Advisory ([email protected])
http://www.debian.org/security/2017/dsa-3964 ([email protected])
http://www.securitytracker.com/id/1039251 Third Party Advisory, VDB Entry ([email protected])
https://bugs.debian.org/873907 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://issues.asterisk.org/jira/browse/ASTERISK-27013 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://rtpbleed.com Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201710-29 ([email protected])
http://downloads.asterisk.org/pub/security/AST-2017-005.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2017/dsa-3964 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1039251 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.debian.org/873907 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://issues.asterisk.org/jira/browse/ASTERISK-27013 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://rtpbleed.com Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201710-29 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For digium's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.