Multiple vulnerability in Digium Asterisk
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-14099 CVE-2017-14100 CVE-2017-14098 |
| CWE-ID | CWE-384 CWE-77 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Certified Asterisk Server applications / Conferencing, Collaboration and VoIP solutions Asterisk Open Source Server applications / Conferencing, Collaboration and VoIP solutions |
| Vendor | Digium (Linux Support Services) |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Session hijacking
EUVDB-ID: #VU8063
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-14099
CWE-ID:
CWE-384 - Session Fixation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to hijack the target user's media session.
The weakness exists due to a flaw in the strict RTP support feature. A remote attacker can send specially crafted RTP traffic to provide and receive media from the session.
The vulnerability is addressed in the following versions:
Asterisk Open Source - 11.25.2, 13.17.1, 14.6.1.
Certified Asterisk - 11.6-cert17, 13.13-cert5.
Certified Asterisk: 11.6.0 - 13.13
Asterisk Open Source: 11.0.0 - 14.4.1
External linkshttp://downloads.asterisk.org/pub/security/AST-2017-005.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Command injection
EUVDB-ID: #VU8064
Risk: High
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-14100
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to execute arbitrary commands on the target system.
The weakness exists due to input validation flaw in the 'app_minivm' module. A remote attacker can send supply specially crafted caller-id name and number data and execute arbitrary operating system commands.
Successful exploitation of the vulnerability may result in system compromise.
The vulnerability is addressed in the following versions:
Asterisk Open Source - 11.25.2, 13.17.1, 14.6.1.
Certified Asterisk - 11.6-cert17, 13.13-cert5.
Certified Asterisk: 11.6.0 - 13.13
Asterisk Open Source: 11.0.0 - 14.4.1
External linkshttp://downloads.asterisk.org/pub/security/AST-2017-006.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Improper input validation
EUVDB-ID: #VU8065
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-14098
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker can cause DoS condition on the target system.
The weakness exists due to a flaw in 'pjsip_message_ip_updater'. A remote attacker can submit a specially crafted URI in a 'From', 'To', and 'Contact' header and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
The vulnerability is addressed in the following versions: 13.17.1, 14.6.1.
Vulnerable software versionsAsterisk Open Source: 13.15.0 - 14.4.0
External linkshttp://downloads.asterisk.org/pub/security/AST-2017-007.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
