VulnerabilityModified

CVE-2018-0150

CRITICAL 9.8EPSS 4.79%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability in Cisco IOS XE Software could allow an unauthenticated, remote attacker to log in to a device running an affected release of Cisco IOS XE Software with the default username and password that are used at initial boot, aka a Static Credential Vulnerability. The vulnerability is due to an undocumented user account with privilege level 15 that has a default username and password. An attacker could exploit this vulnerability by using this account to remotely connect to an affected device. A successful exploit could allow the attacker to log in to the device with privilege level 15 access. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software Release 16.x. This vulnerability does not affect Cisco IOS XE Software releases prior to Release 16.x. Cisco Bug IDs: CSCve89880.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 4.79% probability · 91th percentile
CISA KEV: Not listed
Weakness: CWE-798
Affected: cisco/ios xe
Source: psirt@cisco.com

References

http://www.securityfocus.com/bid/103539Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040579Mitigation, Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-xescMitigation, Vendor Advisory
http://www.securityfocus.com/bid/103539Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040579Mitigation, Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-xescMitigation, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.