CVE-2019-18863: Weak Encryption
First published: Mon Mar 02 2020(Updated: )
A key length vulnerability in the implementation of the SRTP 128-bit key on Mitel 6800 and 6900 SIP series phones, versions 5.1.0.2051 SP2 and earlier, could allow an attacker to launch a man-in-the-middle attack when SRTP is used in a call. A successful exploit may allow the attacker to intercept sensitive information.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mitel 6863 Firmware | <5.1.0.2051 | |
| Mitel 6863 Firmware | =5.1.0.2051 | |
| Mitel 6863 Firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6863 Firmware | ||
| Mitel 6865i SIP Firmware | <5.1.0.2051 | |
| Mitel 6865i SIP Firmware | =5.1.0.2051 | |
| Mitel 6865i SIP Firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6865i SIP | ||
| Mitel 6867i SIP Firmware | <5.1.0.2051 | |
| Mitel 6867i SIP Firmware | =5.1.0.2051 | |
| Mitel 6867i SIP Firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6867i SIP | ||
| Mitel 6869i SIP Phone | <5.1.0.2051 | |
| Mitel 6869i SIP Phone | =5.1.0.2051 | |
| Mitel 6869i SIP Phone | =5.1.0.2051-sp2_hf2 | |
| Mitel 6869i SIP | ||
| Mitel 6873i Firmware | <5.1.0.2051 | |
| Mitel 6873i Firmware | =5.1.0.2051 | |
| Mitel 6873i Firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6873i Firmware | ||
| Mitel 6920 SIP firmware | <5.1.0.2051 | |
| Mitel 6920 SIP firmware | =5.1.0.2051 | |
| Mitel 6920 SIP firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6920 SIP | ||
| Mitel MiVoice 6930 firmware | <5.1.0.2051 | |
| Mitel MiVoice 6930 firmware | =5.1.0.2051 | |
| Mitel MiVoice 6930 firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6930 firmware | ||
| Mitel MiVoice 6940 Firmware | <5.1.0.2051 | |
| Mitel MiVoice 6940 Firmware | =5.1.0.2051 | |
| Mitel MiVoice 6940 Firmware | =5.1.0.2051-sp2_hf2 | |
| Mitel 6940 Firmware |
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Reference Links
Frequently Asked Questions
What is CVE-2019-18863?
CVE-2019-18863 is a key length vulnerability in the implementation of the SRTP 128-bit key on Mitel 6800 and 6900 SIP series phones, versions 5.1.0.2051 SP2 and earlier.
How does CVE-2019-18863 affect Mitel 6800 and 6900 SIP series phones?
CVE-2019-18863 allows an attacker to launch a man-in-the-middle attack when SRTP is used in a call.
What is the severity of CVE-2019-18863?
CVE-2019-18863 has a severity rating of 5.9 (medium).
How can I fix CVE-2019-18863?
To fix CVE-2019-18863, update Mitel 6800 and 6900 SIP series phones to version 5.1.0.2051 SP2 or later.
Where can I find more information about CVE-2019-18863?
You can find more information about CVE-2019-18863 on the Mitel support website.
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- canonical/mitel 6863 firmware
- version/mitel 6863 firmware/5.1.0.2051
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- canonical/mitel 6865i sip
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