7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7 High
AI Score
Confidence
Low
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.451 Medium
EPSS
Percentile
97.4%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2020 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.892463");
script_cve_id("CVE-2020-10704", "CVE-2020-10730", "CVE-2020-10745", "CVE-2020-10760", "CVE-2020-14303", "CVE-2020-14318", "CVE-2020-14323", "CVE-2020-14383", "CVE-2020-1472");
script_tag(name:"creation_date", value:"2020-11-23 04:00:28 +0000 (Mon, 23 Nov 2020)");
script_version("2024-02-02T05:06:07+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"9.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-08-24 17:27:55 +0000 (Mon, 24 Aug 2020)");
script_name("Debian: Security Advisory (DLA-2463-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB9");
script_xref(name:"Advisory-ID", value:"DLA-2463-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2020/DLA-2463-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/samba");
script_xref(name:"URL", value:"https://wiki.debian.org/LTS");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'samba' package(s) announced via the DLA-2463-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Multiple vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix.
CVE-2020-1472
Unauthenticated domain controller compromise by subverting Netlogon cryptography. This vulnerability includes both ZeroLogon and non-ZeroLogon variations.
CVE-2020-10704
An unauthorized user can trigger a denial of service via a stack overflow in the AD DC LDAP server.
CVE-2020-10730
NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results.
CVE-2020-10745
Denial of service resulting from abuse of compression of replies to NetBIOS over TCP/IP name resolution and DNS packets causing excessive CPU load on the Samba AD DC.
CVE-2020-10760
The use of the paged_results or VLV controls against the Global Catalog LDAP server on the AD DC will cause a use-after-free.
CVE-2020-14303
Denial of service resulting from CPU spin and inability to process further requests once the AD DC NBT server receives an empty (zero-length) UDP packet to port 137.
CVE-2020-14318
Missing handle permissions check in ChangeNotify
CVE-2020-14323
Unprivileged user can crash winbind via invalid lookupsids DoS
CVE-2020-14383
DNS server crash via invalid records resulting from uninitialized variables
For Debian 9 stretch, these problems have been fixed in version 2:4.5.16+dfsg-1+deb9u3.
We recommend that you upgrade your samba packages.
For the detailed security status of samba please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");
script_tag(name:"affected", value:"'samba' package(s) on Debian 9.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"ctdb", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libnss-winbind", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libpam-winbind", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libparse-pidl-perl", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libsmbclient", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libsmbclient-dev", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libwbclient-dev", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libwbclient0", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"python-samba", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"registry-tools", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-common", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-common-bin", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-dev", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-dsdb-modules", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-libs", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-testsuite", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"samba-vfs-modules", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"smbclient", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"winbind", ver:"2:4.5.16+dfsg-1+deb9u3", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7 High
AI Score
Confidence
Low
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.451 Medium
EPSS
Percentile
97.4%