Vulnerability in Apache Solr
CVE-2021-29262
When starting Apache Solr versions prior to 8.8.2, configured with the SaslZkACLProvider or VMParamsAllAndReadonlyDigestZkACLProvider and no existing security.json znode, if the optional read-only user is configured then Solr would not treat that node as a sensitive path and would allow it to be readable. Additionally, with any ZkACLProvider, if the security.json is already present, Solr will not automatically update the ACLs.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.067 (93.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.078 · newest: 0.067 · change: -0.011
Affected products
- Apache Solr
- Apache Software Foundation Solr — versions Apache Solr
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r536da4c4e4e406f7843461cc754a3d0a3fe575aa576e2b71a… (Mailing List, Vendor Advisory)
- security.netapp.com/advisory/ntap-20210604-0009/ (Third Party Advisory)
- lists.apache.org/thread.html/r51b29ff62060b67bc9999ded5e252b36b09311fe5a02d27f6… (mailing-list)
- lists.apache.org/thread.html/r1171f6417eeb6d5e1206d53e2b2ff2d6ee14026f8b595ef7d… (mailing-list)
- lists.apache.org/thread.html/rbc680cbfd745f22d182158217428a296e8e398cde16f3f428… (mailing-list)
- lists.apache.org/thread.html/rb6db683903174eaa44ec80cc118a38574319b0d4181f36b61… (mailing-list)
- lists.apache.org/thread.html/r1e92a2eff6c47a65c4a6e95e809a9707181de76f8062403a0… (mailing-list)
- lists.apache.org/thread.html/r9c4ce6903218c92ef2583070e64af5a69e483821c4b3016dc… (mailing-list)
- lists.apache.org/thread.html/rd85f87e559ee27e9c69795e3ad93a77621895e0328ea3df41… (mailing-list)
- lists.apache.org/thread.html/ref84e60192f4bdc3206b247f260513e8d4e71f3e200792f75… (mailing-list)
Frequently asked questions
- What is CVE-2021-29262?
- CVE-2021-29262 is a high-severity vulnerability in Apache Solr, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2021-04-13.
- How severe is CVE-2021-29262?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-29262 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.