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CVE-2021-41099
CVE ID
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CVE-2021-41099
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the underlying string library can be used to corrupt the heap and potentially result with denial of service or remote code execution. The vulnerability involves changing the default proto-max-bulk-len configuration parameter to a very large value and constructing specially crafted network payloads or commands. The problem is fixed in Redis versions 6.2.6, 6.0.16 and 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the proto-max-bulk-len configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.
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CVSS V3 Severity and Metrics
General Information
Vendors
- debian,
- fedoraproject,
- netapp,
- oracle,
- redis
Products
- communications operations monitor 4.3,
- communications operations monitor 4.4,
- communications operations monitor 5.0,
- debian linux 10.0,
- debian linux 11.0,
- fedora 33,
- fedora 34,
- fedora 35,
- management services for element software and netapp hci -,
- redis
References
Advisory
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
