CVE-2017-6742KEVin critical feed
A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to…
Published 9 y ago · modified 4 mo ago · JSON
Summary
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.
Known exploited (CISA KEV)
- Added
- 3 y ago
- Due date
- 2023-05-10 (3 y ago)
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
- Vendor / product
- Cisco / IOS and IOS XE Software
- CISA name
- Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability
CISA SSVC assessment
- Exploitation
- Active — exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 23 mo ago
Exploit prediction (EPSS)
21.26% probability of exploitation in the next 30 days, higher than 98% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- Cisco Cisco IOS XE Software
- IntelliShield Universal Product
Classification
- Weakness
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
- Technology feeds
- Cisco IOS (RSS, critical only)
References
- sec.cloudapps.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp
- securityfocus.com /bid/99345 · vdb-entry, x_refsource_BID, x_transferred
- securitytracker.com /id/1038808 · vdb-entry, x_refsource_SECTRACK, x_transferred
- tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp · x_refsource_CONFIRM, x_transferred
- cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6742 · government-resource
Sources
- CVE List: CVE-2017-6742
- NVD: CVE-2017-6742
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