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CVE-2021-3448
CVE ID
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CVE-2021-3448
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
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
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CVSS V3 Severity and Metrics
General Information
Vendors
- fedoraproject,
- oracle,
- redhat,
- thekelleys
Products
- communications cloud native core network function cloud native environment 1.9.0,
- dnsmasq,
- enterprise linux 8.0,
- fedora 32,
- fedora 33,
- fedora 34
References
Advisory
Additional Info
Technical Analysis
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:
