CVE-2018-15428
CVSS V2 Medium 4.3
CVSS V3 Medium 6.8
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 victim's BGP network on an existing, valid TCP connection to a BGP peer.
Overview
- CVE ID
- CVE-2018-15428
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2018-10-05T14:29:11
- Last Modified Date
- 2019-10-09T23:35:36
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:ios_xr:6.0.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.0.2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.1.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.1.2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.1.3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.1.4:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.2.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.2.2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.2.3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xr:6.4.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-iosxr-dos | Vendor Advisory |
| http://www.securitytracker.com/id/1041790 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-15428 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15428 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:06:12 | Added to TrackCVE | |||
| 2022-12-03 12:58:58 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 12:58:58 | 2018-10-05T14:29Z | 2018-10-05T14:29:11 | CVE Published Date | updated |
| 2022-12-03 12:58:58 | 2019-10-09T23:35:36 | CVE Modified Date | updated | |
| 2022-12-03 12:58:58 | Modified | Vulnerability Status | updated |