Vulnerability Details : CVE-2017-6615
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS XE 3.16 could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a race condition that could occur when the affected software processes an SNMP read request that contains certain criteria for a specific object ID (OID) and an active crypto session is disconnected on an affected device. An attacker who can authenticate to an affected device could trigger this vulnerability by issuing an SNMP request for a specific OID on the device. A successful exploit will cause the device to restart due to an attempt to access an invalid memory region. The attacker does not control how or when crypto sessions are disconnected on the device. Cisco Bug IDs: CSCvb94392.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-6615
Probability of exploitation activity in the next 30 days: 0.21%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 58 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-6615
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.3
|
MEDIUM | AV:N/AC:M/Au:S/C:N/I:N/A:C |
6.8
|
6.9
|
NIST |
|
6.3
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
1.8
|
4.0
|
NIST |
CWE ids for CVE-2017-6615
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The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
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The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
-
Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2017-6615
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http://www.securityfocus.com/bid/97930
Cisco IOS XE Software CVE-2017-6615 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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http://www.securitytracker.com/id/1038328
Cisco IOS XE SNMP Race Condition Lets Remote Authenticated Users Cause the Target System to Restart - SecurityTracker
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170419-ios-xe-snmp
Cisco IOS and IOS XE Software Simple Network Management Protocol Subsystem Denial of Service VulnerabilityVendor Advisory
Products affected by CVE-2017-6615
- cpe:2.3:o:cisco:ios_xe:3.16.2s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.16.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.16.0cs:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.16.1s:*:*:*:*:*:*:*