CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
68.4%
Multiple vulnerabilities were discovered in coTURN, a TURN and STUN server for VoIP.
CVE-2018-4056
A SQL injection vulnerability was discovered in the coTURN administrator web portal. As the administration web interface is shared with the production, it is unfortunately not possible to easily filter outside access and this security update completely disables the web interface. Users should use the local, command line interface instead.
CVE-2018-4058
Default configuration enables unsafe loopback forwarding. A remote attacker with access to the TURN interface can use this vulnerability to gain access to services that should be local only.
CVE-2018-4059
Default configuration uses an empty password for the local command line administration interface. An attacker with access to the local console (either a local attacker or a remote attacker taking advantage of CVE-2018-4058) could escalade privileges to administrator of the coTURN server.
For Debian 8 ‘Jessie’, these problems have been fixed in version 4.2.1.2-1+deb8u1.
We recommend that you upgrade your coturn packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1671-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(122098);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/20");
script_cve_id("CVE-2018-4056", "CVE-2018-4058", "CVE-2018-4059");
script_name(english:"Debian DLA-1671-1 : coturn security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
script_set_attribute(attribute:"description", value:
"Multiple vulnerabilities were discovered in coTURN, a TURN and STUN
server for VoIP.
CVE-2018-4056
A SQL injection vulnerability was discovered in the coTURN
administrator web portal. As the administration web interface is
shared with the production, it is unfortunately not possible to easily
filter outside access and this security update completely disables the
web interface. Users should use the local, command line interface
instead.
CVE-2018-4058
Default configuration enables unsafe loopback forwarding. A remote
attacker with access to the TURN interface can use this vulnerability
to gain access to services that should be local only.
CVE-2018-4059
Default configuration uses an empty password for the local command
line administration interface. An attacker with access to the local
console (either a local attacker or a remote attacker taking advantage
of CVE-2018-4058) could escalade privileges to administrator of the
coTURN server.
For Debian 8 'Jessie', these problems have been fixed in version
4.2.1.2-1+deb8u1.
We recommend that you upgrade your coturn packages.
NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2019/02/msg00017.html");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/coturn");
script_set_attribute(attribute:"solution", value:
"Upgrade the affected coturn package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-4059");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/05");
script_set_attribute(attribute:"patch_publication_date", value:"2019/02/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:coturn");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"coturn", reference:"4.2.1.2-1+deb8u1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
68.4%