Two vulnerabilities in Cambium Networks ePMP

Published: 2017-06-20

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2017-7918 CVE-2017-7922
CWE-ID	CWE-284 CWE-269
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available.
Vulnerable software	ePMP Hardware solutions / Routers & switches, VoIP, GSM, etc
Vendor	Cambium Networks

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU7133

Risk: Low

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2017-7918

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to insufficient access control. A remote attacker can use specific MIBs, trigger device configuration backups after a valid user has used SNMP configuration export, gain access to sensitive information and possibly change configuration.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation

Update to version 3.4-RC7 or later.

Vulnerable software versions

ePMP: 2.0 - 3.4

CPE2.3

External links

https://ics-cert.us-cert.gov/advisories/ICSA-17-166-01

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

2) Information disclosure

EUVDB-ID: #VU7134