Certain builds of NEC SV9100 software could allow an unauthenticated, remote attacker to log into a device running an affected release with a hardcoded username and password, aka a Static Credential Vulnerability. The vulnerability is due to an undocumented user account with manufacturer privilege level. An attacker could exploit this vulnerability by using this account to remotely log into an affected device. A successful exploit could allow the attacker to log into the device with manufacturer level access. This vulnerability affects SV9100 PBXes that are running software release 6.0 or higher. This vulnerability does not affect SV9100 software releases prior to 6.0.
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CVE-2019-20026
The WebPro interface in NEC SV9100 software releases 7.0 or higher allows unauthenticated remote attackers to reset all existing usernames and passwords to default values via a crafted request.
CVE-2019-20027
Aspire-derived NEC PBXes, including the SV8100, SV9100, SL1100 and SL2100 with software releases 7.0 or higher contain the possibility if incorrectly configured to allow a blank username and password combination to be entered as a valid, successfully authenticating account.
CVE-2019-20028
Aspire-derived NEC PBXes operating InMail software, including all versions of SV8100, SV9100, SL1100 and SL2100 devices allow unauthenticated read-only access to voicemails, greetings, and voice response system content through a system’s WebPro administration interface.
CVE-2019-20029
An exploitable privilege escalation vulnerability exists in the WebPro functionality of Aspire-derived NEC PBXes, including all versions of SV8100, SV9100, SL1100 and SL2100 devices. A specially crafted HTTP POST can cause privilege escalation resulting in a higher privileged account, including an undocumented developer level of access.
CVE-2019-20030
An attacker with knowledge of the modem access number on a NEC UM8000 voicemail system may use SSH tunneling or standard Linux utilities to gain access to the system’s LAN port. All versions are affected.