CVE-2021-27905 PoC — SSRF vulnerability with the Replication handler

Title:SSRF vulnerability with the Replication handler (CVE-2021-27905)
Description: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.

Apache Solr SSRF(CVE-2021-27905)

# Solr-SSRF
Apache Solr SSRF
#Use

[-]   Apache Solr SSRF漏洞 (CVE-2021-27905)

[-]   Options:

              -h or --help      :   方法说明
              -u or --url       :   站点URL地址
              -d or --dnslog    :   DnsLog

# eg

python3 CVE-2021-27905.py -u URL -d dnslog

 [4.0K]  /data/pocs/f17e8fb0539c021f56d01fad200b5c859b5de1bd
├── [2.9K]  CVE-2021-27905.py
└── [ 292]  README.md

0 directories, 2 files