Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2022-20806 CVE-2022-20807 CVE-2022-20809 |
| CWE-ID | CWE-73 CWE-611 CWE-532 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cisco Expressway Server applications / Conferencing, Collaboration and VoIP solutions Cisco TelePresence Video Communication Server Server applications / Other server solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) External Control of File Name or Path
EUVDB-ID: #VU63420
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-20806
CWE-ID:
CWE-73 - External Control of File Name or Path
Exploit availability: No
DescriptionThe vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to insufficient input validation of user-supplied command arguments. A remote administrator can obtain sensitive information and cause a denial of service (DoS) condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Expressway: 14.0
Cisco TelePresence Video Communication Server: 14.0
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) XML External Entity injection
EUVDB-ID: #VU63421
Risk: Low
CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-20807
CWE-ID:
CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to insufficient validation of user-supplied XML input in the file-parsing logic. A remote administrator can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.
Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Expressway: 14.0
Cisco TelePresence Video Communication Server: 14.0
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Inclusion of Sensitive Information in Log Files
EUVDB-ID: #VU63424
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-20809
CWE-ID:
CWE-532 - Information Exposure Through Log Files
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to software stores sensitive information into log files in the logging component. A remote user can read the log files and gain access to sensitive data.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Expressway: 14.0
Cisco TelePresence Video Communication Server: 14.0
External linksQ & 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.
