Improper input validation in Cisco Telepresence Mcu 4505
CVE-2017-3792
A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability is due to improper size validation when reassembling fragmented IPv4 or IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv4 or IPv6 fragments to a port receiving content in Passthrough content mode. An exploit could allow the attacker to overflow a buffer. If successful, the attacker could execute arbitrary code or cause a DoS condition on the affected system. Cisco TelePresence MCU platforms TelePresence MCU 5300 Series, TelePresence MCU MSE 8510 and TelePresence MCU 4500 are affected when running software version 4.3(1.68) or later configured for Passthrough content mode. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available, but mitigations are available. Cisco Bug IDs: CSCuu67675.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.068 (94.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.068 · newest: 0.068 · change: 0.000
Affected products
- Cisco Telepresence Mcu 4505
- Cisco Telepresence Mcu 4510
- Cisco Telepresence Mcu 4515
- Cisco Telepresence Mcu 4520
- Cisco Telepresence Mcu 5310
- Cisco Telepresence Mcu 5320
- Cisco Telepresence Mcu Mse 8510
- Cisco Telepresence Mcu Software — versions 4.3_(2.32), 4.3_(2.30), 4.4_(3.67)
- Cisco Telepresence Multipoint Control Unit (Mcu) Software Version 4.3(1.68) Or Later Configured For Passthrough Content Mode — versions Cisco TelePresence Multipoint Control Unit (MCU) software version 4.3(1.68) or later configured for Passthrough content mode
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125… (Vendor Advisory)
- www.securityfocus.com/bid/95787 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1037698 (vdb-entry)
Frequently asked questions
- What is CVE-2017-3792?
- CVE-2017-3792 is a critical-severity vulnerability in Cisco Telepresence Mcu 4505, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-02-01.
- How severe is CVE-2017-3792?
- Critical severity. CVSS v3 base score is 9.8 out of 10.