Medium severity · published Dec 29, 2015
CVE-2015-5296
Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to…
5.4
CVSS
7.3%
EPSS
No
On KEV
Description
Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)7.3% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0 · source: NVD
SA
Samba · Samba
3.2.0 before 4.1.22; 4.2.0 before 4.2.7; 4.3.0 before 4.3.3 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.04; 15.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-5296
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-5296
Mailing List
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html
Mailing List
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html
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