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prionPRIOn knowledge basePRION:CVE-2021-27905
HistoryApr 13, 2021 - 7:15 a.m.

Server side request forgery (ssrf)

2021-04-1307:15:00
PRIOn knowledge base
www.prio-n.com
3

9 High

AI Score

Confidence

High

0.948 High

EPSS

Percentile

99.3%

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.

CPENameOperatorVersion
solrlt8.8.2

References