Vulnerability Details : 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 category: Input validationExecute codeDenial of service
Products affected by CVE-2017-3792
- cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.57\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.54\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.72\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.71\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.49\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.42\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.85\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.55\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(2.32\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(2.30\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.5_\(1.45\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.4_\(3.67\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(2.18\):*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mcu_software:4.3_\(1.68\):*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-3792
1.99%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-3792
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-3792
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2017-3792
-
http://www.securitytracker.com/id/1037698
Cisco TelePresence MCU Buffer Overflow in Fragment Reassembly Lets Remote Users Execute Arbitrary Code on the Target System - SecurityTracker
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-telepresence
Cisco TelePresence Multipoint Control Unit Remote Code Execution VulnerabilityVendor Advisory
-
http://www.securityfocus.com/bid/95787
Cisco TelePresence Multipoint Control Unit CVE-2017-3792 Remote Code Execution VulnerabilityThird Party Advisory;VDB Entry
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