CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
56.5%
Jeriko One discovered two vulnerabilities in the ZNC IRC bouncer which could result in privilege escalation or denial of service.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-4252. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(111175);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/04");
script_cve_id("CVE-2018-14055", "CVE-2018-14056");
script_xref(name:"DSA", value:"4252");
script_name(english:"Debian DSA-4252-1 : znc - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"Jeriko One discovered two vulnerabilities in the ZNC IRC bouncer which
could result in privilege escalation or denial of service.");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/znc");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/znc");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2018/dsa-4252");
script_set_attribute(attribute:"solution", value:
"Upgrade the znc packages.
For the stable distribution (stretch), these problems have been fixed
in version 1.6.5-1+deb9u1.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-14056");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-14055");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/07/15");
script_set_attribute(attribute:"patch_publication_date", value:"2018/07/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/20");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:znc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
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) 2018-2024 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:"9.0", prefix:"znc", reference:"1.6.5-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"znc-dbg", reference:"1.6.5-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"znc-dev", reference:"1.6.5-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"znc-perl", reference:"1.6.5-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"znc-python", reference:"1.6.5-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"znc-tcl", reference:"1.6.5-1+deb9u1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
56.5%