CVE-2021-27905
SSRF vulnerability with the Replication handler
7.1
HIGH
CVSS 3.1
EPSS 93.1%
描述
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.
如何修補 CVE-2021-27905
要修補 CVE-2021-27905,請將受影響套件升級到下列已修補版本。
- —升級至 8.8.2 或更新版本
- —升級至 3.6.2+dfsg-23 或更新版本
- —升級至 8.8.2 或更新版本
CVE-2021-27905 正在被利用嗎?
可能 — EPSS 為 93.1%,屬於高被利用機率區間,建議優先修補。
受影響套件(3)
- from 0, < 8.8.2
- from 0, < 3.6.2+dfsg-23
- from 0, < 8.8.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N |