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CVE-2017-3859
CVE ID
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MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
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.
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CVSS V3 Severity and Metrics
General Information
Vendors
- cisco
Products
- ios xe 3.13.4s,
- ios xe 3.13.5as,
- ios xe 3.13.5s,
- ios xe 3.13.6as,
- ios xe 3.13.6s,
- ios xe 3.14.3s,
- ios xe 3.14.4s,
- ios xe 3.15.2s,
- ios xe 3.15.3s,
- ios xe 3.15.4s,
- ios xe 3.16.0cs,
- ios xe 3.16.0s,
- ios xe 3.16.1as,
- ios xe 3.16.1s,
- ios xe 3.16.2as,
- ios xe 3.16.2bs,
- ios xe 3.16.2s,
- ios xe 3.16.3as,
- ios xe 3.16.3s,
- ios xe 3.17.0s,
- ios xe 3.17.1as,
- ios xe 3.17.1s,
- ios xe 3.17.2s,
- ios xe 3.18.0as,
- ios xe 3.18.0s,
- ios xe 3.18.0sp,
- ios xe 3.18.1asp,
- ios xe 3.18.1bsp,
- ios xe 3.18.1csp,
- ios xe 3.18.1s,
- ios xe 3.18.1sp,
- ios xe 3.18.2s,
- ios xe 3.18.3vs
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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