CVE-2021-27905

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. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://lists.apache.org/thread.html/r0ddc3a82bd7523b1453cb7a5e09eb5559517145425074a42eb326b10%40%3Cannounce.apache.org%3E	Mailing List Vendor Advisory
https://security.netapp.com/advisory/ntap-20210611-0009/	Third Party Advisory
https://lists.apache.org/thread.html/r95df34bb158375948da82b4dfe9a1b5d528572d586584162f8f5aeef@%3Cusers.solr.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r140128dc6bb4f4e0b6a39e962c7ca25a8cbc8e48ed766176c931fccc@%3Cusers.solr.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r3da74965aba2b5f5744b7289ad447306eeb2940c872801819faa9314@%3Cusers.solr.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/rae9ccaecce9859f709ed1458545d90a4c07163070dc98b5e9e59057f@%3Cnotifications.ofbiz.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r720a4a0497fc90bad5feec8aa18b777912ee15c7eeb5f882adbf523e@%3Ccommits.ofbiz.apache.org%3E	Mailing List Patch Vendor Advisory
https://lists.apache.org/thread.html/r6ccec7fc54d82591b23c143f1f6a6e38f6e03e75db70870e4cb14a1a@%3Ccommits.ofbiz.apache.org%3E	Mailing List Patch Vendor Advisory
https://lists.apache.org/thread.html/rd232d77c57a8ce172359ab098df9512d8b37373ab87c444be911b430@%3Cnotifications.ofbiz.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/re9d64bb8e5dfefddcbf255adb4559e13a0df5b818da1b9b51329723f@%3Cnotifications.ofbiz.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r8f1152a43c36d878bbeb5a92f261e9efaf3af313b033d7acfccea59d@%3Cnotifications.ofbiz.apache.org%3E	Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r78a3a4f1138a1608b0c6d4a2ee7647848c1a20b0d5c652cd9b02c25a@%3Ccommits.ofbiz.apache.org%3E	Mailing List Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*

Information

Published : 2021-04-13 00:15

Updated : 2021-09-16 06:19

NVD link : CVE-2021-27905

Mitre link : CVE-2021-27905

JSON object : View

CWE

CWE-918

Server-Side Request Forgery (SSRF)

Products Affected

apache

solr

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9.8 /10