Vulnerability Details CVE-2018-15428
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 69.4%
CVSS Severity
CVSS v3 Score 6.8
CVSS v2 Score 4.3
References
Products affected by CVE-2018-15428
-
cpe:2.3:h:cisco:asr_9001:-
-
cpe:2.3:h:cisco:asr_9006:-
-
cpe:2.3:h:cisco:asr_9010:-
-
cpe:2.3:h:cisco:asr_9901:-
-
cpe:2.3:h:cisco:asr_9904:-
-
cpe:2.3:h:cisco:asr_9906:-
-
cpe:2.3:h:cisco:asr_9910:-
-
cpe:2.3:h:cisco:asr_9912:-
-
cpe:2.3:h:cisco:asr_9922:-
-
cpe:2.3:o:cisco:ios_xr:6.0.1
-
cpe:2.3:o:cisco:ios_xr:6.0.2
-
cpe:2.3:o:cisco:ios_xr:6.1.1
-
cpe:2.3:o:cisco:ios_xr:6.1.2
-
cpe:2.3:o:cisco:ios_xr:6.1.3
-
cpe:2.3:o:cisco:ios_xr:6.1.4
-
cpe:2.3:o:cisco:ios_xr:6.2.1
-
cpe:2.3:o:cisco:ios_xr:6.2.2
-
cpe:2.3:o:cisco:ios_xr:6.2.3
-
cpe:2.3:o:cisco:ios_xr:6.4.1