Multiple vulnerabilities in NEC Platforms UNIVERGE SV9500/SV8500 series
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-5685 CVE-2020-5686 |
| CWE-ID | CWE-78 CWE-303 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
UNIVERGE SV9500 Server applications / Conferencing, Collaboration and VoIP solutions UNIVERGE SV8500 Server applications / Conferencing, Collaboration and VoIP solutions |
| Vendor | NEC Corporation |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) OS Command Injection
EUVDB-ID: #VU49227
Risk: Medium
CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-5685
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote attacker on the local network can send a specially crafted request and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsUNIVERGE SV9500: V1 - V7
UNIVERGE SV8500: S6 - S8
External linkshttp://jvn.jp/en/jp/JVN38784555/index.html
http://www.necplatforms.co.jp/press/files/SV85Vulnerability_UNIVERGE_Product_E_20210104.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Incorrect Implementation of Authentication Algorithm
EUVDB-ID: #VU49228
Risk: Low
CVSSv3.1: 6.6 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-5686
CWE-ID:
CWE-303 - Incorrect Implementation of Authentication Algorithm
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to to bypass authentication process.
The vulnerability exists due to incorrect implementation of authentication algorithm. A remote attacker on the local network can send a specially crafted request, access the remote system maintenance feature and disclose sensitive information.
MitigationInstall updates from vendor's website.
Vulnerable software versionsUNIVERGE SV9500: V1 - V7
UNIVERGE SV8500: S6 - S8
External linkshttp://jvn.jp/en/jp/JVN38784555/index.html
http://www.necplatforms.co.jp/press/files/SV85Vulnerability_UNIVERGE_Product_E_20210104.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
