High severity · published Jul 17, 2017
CVE-2017-6742
Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability
In wildKEV
8.8
CVSS
21.4%
EPSS
Yes
On KEV
Description
A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the affected device.
The vulnerability is due to a buffer overflow in the affected code area. The vulnerability affects all versions of SNMP (versions 1, 2c, and 3). The attacker must know the SNMP read only community string (SNMP version 2c or earlier) or the user credentials (SNMPv3). An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or to cause a reload of the affected system.
Only traffic directed to the affected system can be used to exploit this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)21.4% · higher than 98% of CVEs
Exploited in the wildYes
CISA KEVListed Apr 19, 2023
Federal remediation dueMay 10, 2023
Ransomware campaign useNot known
Affected products
Which versions
IX
IOS XE · Cisco
2.2.0 through 3.17 · source: NVD
CI
Cisco IOS XE Software · Cisco
3.7.0S; 3.7.1S; 3.7.2S; 3.7.3S; 3.7.4S; 3.7.5S; +34 more · source: vendor
UP
Universal Product · IntelliShield
All versions, or not specified · source: vendor
IO
Ios · Cisco
12.0 through 12.4; 15.0 through 15.6 · source: NVD
IA
IOS and IOS XE Software · Cisco
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-6742
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-6742
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
sec.cloudapps.cisco.com
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp
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