Vulnerability Details : CVE-2018-0315
A vulnerability in the authentication, authorization, and accounting (AAA) security services of Cisco IOS XE Software could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device or cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect memory operations that the affected software performs when the software parses a username during login authentication. An attacker could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the affected device or cause the affected device to reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are running Cisco IOS XE Software Release Fuji 16.7.1 or Fuji 16.8.1 and are configured to use AAA for login authentication. Cisco Bug IDs: CSCvi25380.
Vulnerability category: OverflowExecute codeDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-0315
Probability of exploitation activity in the next 30 days: 4.47%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 92 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-0315
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST |
9.8
|
CRITICAL | CVSS:3.1/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-2018-0315
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2018-0315
-
http://www.securitytracker.com/id/1041086
Cisco IOS XE AAA Bug Lets Remote Users Execute Arbitrary Code on the Target System - SecurityTrackerBroken Link;Third Party Advisory;VDB Entry
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-aaa
Cisco IOS XE Software Authentication, Authorization, and Accounting Login Authentication Remote Code Execution VulnerabilityVendor Advisory
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http://www.securityfocus.com/bid/104410
Cisco IOS XE Software CVE-2018-0315 Remote Code Execution VulnerabilityThird Party Advisory;VDB Entry
Products affected by CVE-2018-0315
- cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:*