Vulnerabilities > CVE-2017-12865 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201812-02.NASL description The remote host is affected by the vulnerability described in GLSA-201812-02 (ConnMan: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in ConnMan. Please review the CVE identifiers referenced below for details. Impact : A remote attacker, via a crafted DNS packet, could remotely execute code or cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 119321 published 2018-12-03 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119321 title GLSA-201812-02 : ConnMan: Multiple vulnerabilities code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 201812-02. # # The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(119321); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/18"); script_cve_id("CVE-2017-12865", "CVE-2017-5716"); script_xref(name:"GLSA", value:"201812-02"); script_name(english:"GLSA-201812-02 : ConnMan: Multiple vulnerabilities"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-201812-02 (ConnMan: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in ConnMan. Please review the CVE identifiers referenced below for details. Impact : A remote attacker, via a crafted DNS packet, could remotely execute code or cause a Denial of Service condition. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/201812-02" ); script_set_attribute( attribute:"solution", value: "All ConnMan users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/connman-1.35-r1'" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); 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:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:connman"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/29"); script_set_attribute(attribute:"patch_publication_date", value:"2018/12/02"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/03"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"net-misc/connman", unaffected:make_list("ge 1.35-r1"), vulnerable:make_list("lt 1.35-r1"))) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get()); else security_hole(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ConnMan"); }
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3956.NASL description Security consultants in NRI Secure Technologies discovered a stack overflow vulnerability in ConnMan, a network manager for embedded devices. An attacker with control of the DNS responses to the DNS proxy in ConnMan might crash the service and, in same cases, remotely execute arbitrary commands in the host running the service. last seen 2020-06-01 modified 2020-06-02 plugin id 102792 published 2017-08-28 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/102792 title Debian DSA-3956-1 : connman - security update NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1078.NASL description In connman, stack-based buffer overflow in last seen 2020-03-17 modified 2017-08-31 plugin id 102845 published 2017-08-31 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/102845 title Debian DLA-1078-1 : connman security update
References
- https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=5c281d182ecdd0a424b64f7698f32467f8f67b71
- https://bugzilla.redhat.com/show_bug.cgi?id=1483720
- http://www.securityfocus.com/bid/100498
- http://www.debian.org/security/2017/dsa-3956
- https://www.nri-secure.com/blog/new-iot-vulnerability-connmando
- https://01.org/security/intel-oss-10001/intel-oss-10001
- https://security.gentoo.org/glsa/201812-02