CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
EPSS
Percentile
99.1%
Several vulnerabilities have been discovered in Asterisk, an Open Source PBX and telephony toolkit.
CVE-2011-1147 Matthew Nicholson discovered that incorrect handling of UDPTL packets may lead to denial of service or the execution of arbitrary code.
CVE-2011-1174 Blake Cornell discovered that incorrect connection handling in the manager interface may lead to denial of service.
CVE-2011-1175 Blake Cornell and Chris May discovered that incorrect TCP connection handling may lead to denial of service.
CVE-2011-1507 Tzafrir Cohen discovered that insufficient limitation of connection requests in several TCP based services may lead to denial of service. Please see AST-2011-005 for details.
CVE-2011-1599 Matthew Nicholson discovered a privilege escalation vulnerability in the manager interface.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-2225. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(53558);
script_version("1.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2011-1147", "CVE-2011-1174", "CVE-2011-1175", "CVE-2011-1507", "CVE-2011-1599");
script_bugtraq_id(46474, 46897, 46898, 47537);
script_xref(name:"DSA", value:"2225");
script_name(english:"Debian DSA-2225-1 : asterisk - several vulnerabilities");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Several vulnerabilities have been discovered in Asterisk, an Open
Source PBX and telephony toolkit.
- CVE-2011-1147
Matthew Nicholson discovered that incorrect handling of
UDPTL packets may lead to denial of service or the
execution of arbitrary code.
- CVE-2011-1174
Blake Cornell discovered that incorrect connection
handling in the manager interface may lead to denial of
service.
- CVE-2011-1175
Blake Cornell and Chris May discovered that incorrect
TCP connection handling may lead to denial of service.
- CVE-2011-1507
Tzafrir Cohen discovered that insufficient limitation of
connection requests in several TCP based services may
lead to denial of service. Please see AST-2011-005 for
details.
- CVE-2011-1599
Matthew Nicholson discovered a privilege escalation
vulnerability in the manager interface."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-1147"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-1174"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-1175"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-1507"
);
script_set_attribute(
attribute:"see_also",
value:"http://downloads.asterisk.org/pub/security/AST-2011-005.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2011-1599"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze/asterisk"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2011/dsa-2225"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the asterisk packages.
For the oldstable distribution (lenny), this problem has been fixed in
version 1:1.4.21.2~dfsg-3+lenny2.1.
For the stable distribution (squeeze), this problem has been fixed in
version 1:1.6.2.9-2+squeeze2."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:asterisk");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2011/04/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2011/04/27");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2011-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
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:"5.0", prefix:"asterisk", reference:"1:1.4.21.2~dfsg-3+lenny2.1")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-config", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-dbg", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-dev", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-doc", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-h323", reference:"1:1.6.2.9-2+squeeze2")) flag++;
if (deb_check(release:"6.0", prefix:"asterisk-sounds-main", reference:"1:1.6.2.9-2+squeeze2")) 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");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1147
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1174
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1175
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1507
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1599
downloads.asterisk.org/pub/security/AST-2011-005.html
packages.debian.org/source/squeeze/asterisk
security-tracker.debian.org/tracker/CVE-2011-1147
security-tracker.debian.org/tracker/CVE-2011-1174
security-tracker.debian.org/tracker/CVE-2011-1175
security-tracker.debian.org/tracker/CVE-2011-1507
security-tracker.debian.org/tracker/CVE-2011-1599
www.debian.org/security/2011/dsa-2225