CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
34.4%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2019 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("1.3.6.1.4.1.25623.1.0.891818");
script_cve_id("CVE-2019-12749");
script_tag(name:"creation_date", value:"2019-06-15 02:00:08 +0000 (Sat, 15 Jun 2019)");
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:"3.6");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2019-06-12 15:39:01 +0000 (Wed, 12 Jun 2019)");
script_name("Debian: Security Advisory (DLA-1818-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2019 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=DEB8");
script_xref(name:"Advisory-ID", value:"DLA-1818-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2019/DLA-1818-1");
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 'dbus' package(s) announced via the DLA-1818-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Joe Vennix discovered an authentication bypass vulnerability in dbus, an asynchronous inter-process communication system. The implementation of the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a symbolic link attack. A local attacker could take advantage of this flaw to bypass authentication and connect to a DBusServer with elevated privileges.
For Debian 8 Jessie, this problem has been fixed in version 1.8.22-0+deb8u2.
We recommend that you upgrade your dbus packages.
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:"'dbus' package(s) on Debian 8.");
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 == "DEB8") {
if(!isnull(res = isdpkgvuln(pkg:"dbus", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dbus-1-dbg", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dbus-1-doc", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dbus-udeb", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dbus-x11", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libdbus-1-3", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libdbus-1-3-udeb", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libdbus-1-dev", ver:"1.8.22-0+deb8u2", rls:"DEB8"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
34.4%