Cisco IOS XE Software for Cisco ASR 920 Series Routers
At a glance
- Source
- NVD
- EPSS
- EPSS 2.48 % · percentile 85 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-134 — Use of Externally-Controlled Format String
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2017-12976
- GCVE · GCVE-0-2017-3859
CERT-FR advisories
- CERTFR-2017-AVI-089 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:ios_xe:3.13.4s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.13.5as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.13.5s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.13.6s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.14.3s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.14.4s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.15.2s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.15.3s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.15.4s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.0cs:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.0s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.2as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.2bs:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.2s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.3as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.16.3s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.17.0s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.17.1as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.17.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.17.2s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.0as:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.0s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.0sp:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.1asp:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.1bsp:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.1csp:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.1s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.1sp:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.2s:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios_xe:3.18.3vs:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco IOS XE Software for Cisco ASR 920 Series Routers | affected Cisco IOS XE Software for Cisco ASR 920 Series Routers |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |