A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device. This vulnerability is due to insufficient input validation of arguments that are supplied by the user for a specific file transfer method. An attacker with lower-level privileges could exploit this vulnerability by specifying Secure Copy Protocol (SCP) parameters when authenticating to a device. A successful exploit could allow the attacker to elevate their privileges and retrieve and upload files on a device that they should not have access to.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-inject-QwZOCv2 | Vendor Advisory |
Configurations
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Configuration 2 (hide)
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History
21 Sep 2021, 20:01
| Type | Values Removed | Values Added |
|---|---|---|
| References | (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-inject-QwZOCv2 - Vendor Advisory | |
| CPE | cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_4009:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_1002:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ios_xrv_9000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_560-7:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_520:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ios_xrv:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5502-se:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5011:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_6008:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_1001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_1004:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_4016:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5002:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_6000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5501-se:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5501:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_560-4:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:* cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_540_fronthaul:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:* |
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| CVSS |
v2 : v3 : |
v2 : 8.5
v3 : 8.1 |
| CWE | CWE-88 |
09 Sep 2021, 06:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-09-09 05:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-34718
Mitre link : CVE-2021-34718
CVE.ORG link : CVE-2021-34718
JSON object : View
Products Affected
cisco
- ncs_5502
- ncs_1004
- ncs_5508
- ios_xrv_9000
- asr_9902
- ncs_4009
- asr_9010
- ncs_5002
- asr_9912
- ncs_5001
- ncs_520
- ios_xr
- ncs_1002
- ncs_5011
- asr_9006
- ncs_5516
- ncs_4016
- ios_xrv
- ncs_6000
- ncs_5501
- asr_9904
- asr_9901
- asr_9910
- ncs_6008
- asr_9903
- ncs_540
- ncs_560-7
- asr_9922
- asr_9000v-v2
- ncs_560-4
- asr_9906
- ncs_1001
- ncs_540_fronthaul
- asr_9001
- ncs_5502-se
- ncs_5501-se
CWE
CWE-88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')