SB2021012612 - Privilege escalation in Apache Hadoop
Published: January 26, 2021
Security Bulletin ID
SB2021012612
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2020-9492)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the way Apache Hadoop handles SPNEGO authorization headers. A remote WebHDFS client can trigger services to send server credentials to a webhdfs path for capturing the service principal.
Remediation
Install update from vendor's website.