CVE-2018-15428

Description

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 victims BGP network on an existing, valid TCP connection to a BGP peer.

Risk Information

Base Score

6.8

MODERATE

Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS Score

Exploitation Probability

0.541

Associated Vulnerability

Vulnerability	OS Platform
Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability For Cisco ASR 9000 Series Aggregation Services Routers	NCM
Improper Input Validation Vulnerability (CVE-2018-15428)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1705564	Security Update for Cisco ASR 9000 Series Aggregation Services Routers 5.3.0.1i.BASE

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234