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CVE-2023-51765
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CVE-2023-51765
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
sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>
.<CR>
<LF>
but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with ‘o’ in srv_features.
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CVSS V3 Severity and Metrics
General Information
Vendors
- freebsd,
- redhat,
- sendmail
Products
- enterprise linux 8.0,
- enterprise linux 9.0,
- freebsd,
- sendmail
References
Advisory
Miscellaneous
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: