CVE-2018-1139 — Improper Input Validation in Samba

CWE-20 — Improper Input ValidationCWE-522 — Insufficiently Protected Credentials9 documents8 sources
Severity
8.1HIGHNVD
EPSS
1.6%
top 18.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
SambaTHE Samba Team SambaCanonical Ubuntu Linux+3 more
Timeline
PublishedAug 22
Latest updateMay 13

Description

A flaw was found in the way samba before 4.7.9 and 4.8.4 allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9

Affected Packages6 packages

▶NVDsamba/samba4.7.0 — 4.7.9+1
▶Debiansamba/samba< 2:4.8.4+dfsg-1+3
▶CVEListV5the_samba_team/sambabefore 4.7.9, before 4.8.4+1

Also affects: Ubuntu Linux 14.04, 16.04, 18.04

🔴Vulnerability Details

3
GHSA
GHSA-xxm3-fp55-pm48: A flaw was found in the way samba before 4↗2022-05-13
▶
OSV
CVE-2018-1139: A flaw was found in the way samba before 4↗2018-08-22
▶
CVEList
CVE-2018-1139: A flaw was found in the way samba before 4↗2018-08-22
▶

📋Vendor Advisories

3
Red Hat
samba: Weak authentication protocol regression↗2018-08-16
▶
Ubuntu
Samba vulnerabilities↗2018-08-14
▶
Debian
CVE-2018-1139: samba - A flaw was found in the way samba before 4.7.9 and 4.8.4 allowed the use of weak...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-1139 samba: Weak authentication protocol regression [fedora-all]↗2018-08-16
▶
Bugzilla
CVE-2018-1139 samba: Weak authentication protocol regression↗2018-06-11
▶
CVE-2018-1139 — Improper Input Validation in Samba | cvebase