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cveApacheCVE-2017-9803
HistorySep 18, 2017 - 9:29 p.m.

CVE-2017-9803

2017-09-1821:29:00
CWE-287
apache
web.nvd.nist.gov
49
2
cve-2017-9803
apache solr
kerberos
access leakage
privilege escalation
security vulnerability

CVSS2

6

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:P/I:P/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

25.2%

Apache Solr’s Kerberos plugin can be configured to use delegation tokens, which allows an application to reuse the authentication of an end-user or another application. There are two issues with this functionality (when using SecurityAwareZkACLProvider type of ACL provider e.g. SaslZkACLProvider). Firstly, access to the security configuration can be leaked to users other than the solr super user. Secondly, malicious users can exploit this leaked configuration for privilege escalation to further expose/modify private data and/or disrupt operations in the Solr cluster. The vulnerability is fixed from Apache Solr 6.6.1 onwards.

Affected configurations

Nvd
Vulners
Node
apachesolrMatch6.2.0
OR
apachesolrMatch6.2.1
OR
apachesolrMatch6.3.0
OR
apachesolrMatch6.4.0
OR
apachesolrMatch6.4.1
OR
apachesolrMatch6.4.2
OR
apachesolrMatch6.5.0
OR
apachesolrMatch6.5.1
OR
apachesolrMatch6.6.0
VendorProductVersionCPE
apachesolr6.2.0cpe:2.3:a:apache:solr:6.2.0:*:*:*:*:*:*:*
apachesolr6.2.1cpe:2.3:a:apache:solr:6.2.1:*:*:*:*:*:*:*
apachesolr6.3.0cpe:2.3:a:apache:solr:6.3.0:*:*:*:*:*:*:*
apachesolr6.4.0cpe:2.3:a:apache:solr:6.4.0:*:*:*:*:*:*:*
apachesolr6.4.1cpe:2.3:a:apache:solr:6.4.1:*:*:*:*:*:*:*
apachesolr6.4.2cpe:2.3:a:apache:solr:6.4.2:*:*:*:*:*:*:*
apachesolr6.5.0cpe:2.3:a:apache:solr:6.5.0:*:*:*:*:*:*:*
apachesolr6.5.1cpe:2.3:a:apache:solr:6.5.1:*:*:*:*:*:*:*
apachesolr6.6.0cpe:2.3:a:apache:solr:6.6.0:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Apache Solr",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "status": "affected",
        "version": "6.2.0 to 6.6.0"
      }
    ]
  }
]

Social References

More

CVSS2

6

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:P/I:P/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

25.2%