5.3

CVE-2023-51766

Exploit

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING 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 Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.64% 0.814
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-345 Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

https://lwn.net/Articles/956533/
Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/12/29/2
Third Party Advisory
Mailing List
Mitigation
https://bugs.exim.org/show_bug.cgi?id=3063
Vendor Advisory
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2255852
Third Party Advisory
Issue Tracking
https://www.openwall.com/lists/oss-security/2023/12/23/2
Third Party Advisory
Mailing List
Issue Tracking