A vulnerability in the DHCP code for the Zero Touch Provisioning feature of Cisco ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a format string vulnerability when processing a crafted DHCP packet for Zero Touch Provisioning. An attacker could exploit this vulnerability by sending a specially crafted DHCP packet to an affected device. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects Cisco ASR 920 Series Aggregation Services Routers that are running an affected release of Cisco IOS XE Software (3.13 through 3.18) and are listening on the DHCP server port. By default, the devices do not listen on the DHCP server port. Cisco Bug IDs: CSCuy56385.
References
Link | Resource |
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http://www.securityfocus.com/bid/97008 | Third Party Advisory VDB Entry |
http://www.securitytracker.com/id/1038104 | |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-ztp | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
No history.
Information
Published : 2017-03-22 19:59
Updated : 2024-02-28 15:44
NVD link : CVE-2017-3859
Mitre link : CVE-2017-3859
CVE.ORG link : CVE-2017-3859
JSON object : View
Products Affected
cisco
- asr-920-4sz-d
- asr-920-12cz-d
- ios_xe
- asr-920-12cz-a
- asr-920-24sz-im
- asr-920-4sz-a
- asr-920-12sz-im
- asr-920-24sz-m
- asr-920-24tz-m
CWE
CWE-134
Use of Externally-Controlled Format String