Vulnerabilities > CVE-2011-0413 - Improper Input Validation vulnerability in ISC Dhcp
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
COMPLETE Summary
The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 29 |
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.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2011-022.NASL description A vulnerability has been found and corrected in dhcp : The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address (CVE-2011-0413). The updated packages have been patched to correct this issue. last seen 2020-06-01 modified 2020-06-02 plugin id 51899 published 2011-02-08 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51899 title Mandriva Linux Security Advisory : dhcp (MDVSA-2011:022) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Mandriva Linux Security Advisory MDVSA-2011:022. # The text itself is copyright (C) Mandriva S.A. # include("compat.inc"); if (description) { script_id(51899); script_version("1.12"); script_cvs_date("Date: 2019/08/02 13:32:53"); script_cve_id("CVE-2011-0413"); script_bugtraq_id(46035); script_xref(name:"MDVSA", value:"2011:022"); script_name(english:"Mandriva Linux Security Advisory : dhcp (MDVSA-2011:022)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Mandriva Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "A vulnerability has been found and corrected in dhcp : The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address (CVE-2011-0413). The updated packages have been patched to correct this issue." ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:mandriva:linux:dhcp-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-common"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-doc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-relay"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:dhcp-server"); script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.0"); script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.1"); script_set_attribute(attribute:"patch_publication_date", value:"2011/02/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2011/02/08"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Mandriva Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux"); if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu); flag = 0; if (rpm_check(release:"MDK2010.0", reference:"dhcp-client-4.1.2-0.3mdv2010.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.0", reference:"dhcp-common-4.1.2-0.3mdv2010.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.0", reference:"dhcp-devel-4.1.2-0.3mdv2010.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.0", reference:"dhcp-doc-4.1.2-0.3mdv2010.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.0", reference:"dhcp-relay-4.1.2-0.3mdv2010.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.0", reference:"dhcp-server-4.1.2-0.3mdv2010.0", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.1", reference:"dhcp-client-4.1.2-0.3mdv2010.2", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.1", reference:"dhcp-common-4.1.2-0.3mdv2010.2", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.1", reference:"dhcp-devel-4.1.2-0.3mdv2010.2", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.1", reference:"dhcp-doc-4.1.2-0.3mdv2010.2", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.1", reference:"dhcp-relay-4.1.2-0.3mdv2010.2", yank:"mdv")) flag++; if (rpm_check(release:"MDK2010.1", reference:"dhcp-server-4.1.2-0.3mdv2010.2", yank:"mdv")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2011-0256.NASL description From Red Hat Security Advisory 2011:0256 : Updated dhcp packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. DHCPv6 is the DHCP protocol version for IPv6 networks. A flaw was found in the way the dhcpd daemon processed certain DHCPv6 messages for addresses that had previously been declined and marked as abandoned internally. If a remote attacker sent such messages to dhcpd, it could cause dhcpd to crash due to an assertion failure if it was running as a DHCPv6 server. (CVE-2011-0413) Red Hat would like to thank Internet Systems Consortium for reporting this issue. Users running dhcpd as a DHCPv6 server should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 68198 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68198 title Oracle Linux 6 : dhcp (ELSA-2011-0256) NASL family Fedora Local Security Checks NASL id FEDORA_2011-0848.NASL description This is a SECURITY release of ISC DHCP, which fixes two security related bugs: CVE-2011-0413: DHCPv6 server CVE-2011-0997: dhclient Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 53478 published 2011-04-19 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/53478 title Fedora 13 : dhcp-4.1.2-4.ESV.R2.fc13 (2011-0848) NASL family SuSE Local Security Checks NASL id SUSE_11_3_DHCP-110203.NASL description A Denial of Service vulnerability while processing DHCPv6 decline messages hass been fixed. CVE-2011-0413 has been assigned to this issue. last seen 2020-06-01 modified 2020-06-02 plugin id 75464 published 2014-06-13 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/75464 title openSUSE Security Update : dhcp (openSUSE-SU-2011:0098-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2011-0256.NASL description Updated dhcp packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. DHCPv6 is the DHCP protocol version for IPv6 networks. A flaw was found in the way the dhcpd daemon processed certain DHCPv6 messages for addresses that had previously been declined and marked as abandoned internally. If a remote attacker sent such messages to dhcpd, it could cause dhcpd to crash due to an assertion failure if it was running as a DHCPv6 server. (CVE-2011-0413) Red Hat would like to thank Internet Systems Consortium for reporting this issue. Users running dhcpd as a DHCPv6 server should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all DHCP servers will be restarted automatically. last seen 2020-06-01 modified 2020-06-02 plugin id 51993 published 2011-02-16 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51993 title RHEL 6 : dhcp (RHSA-2011:0256) NASL family Fedora Local Security Checks NASL id FEDORA_2011-0862.NASL description A flaw was discovered in the way the dhcpd daemon processed a message for an address that had been previously declined and internally tagged as abandoned. Processing such a message could trigger an assert failure that could crash dhcpd if it was running as a DHCPv6 server. DHCPv4 servers are unaffected. (CVE-2011-0413) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 51842 published 2011-02-02 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51842 title Fedora 14 : dhcp-4.2.0-19.P2.fc14 (2011-0862) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2184.NASL description It was discovered that the ISC DHCPv6 server does not correctly process requests which come from unexpected source addresses, leading to an assertion failure and a daemon crash. The oldstable distribution (lenny) is not affected by this problem. last seen 2020-03-17 modified 2011-03-07 plugin id 52551 published 2011-03-07 reporter This script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/52551 title Debian DSA-2184-1 : isc-dhcp - denial of service NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_DC9F83352B3B11E0A91B00E0815B8DA8.NASL description ISC reports : When the DHCPv6 server code processes a message for an address that was previously declined and internally tagged as abandoned it can trigger an assert failure resulting in the server crashing. This could be used to crash DHCPv6 servers remotely. This issue only affects DHCPv6 servers. DHCPv4 servers are unaffected. last seen 2020-06-01 modified 2020-06-02 plugin id 51824 published 2011-01-31 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/51824 title FreeBSD : isc-dhcp-server -- DHCPv6 crash (dc9f8335-2b3b-11e0-a91b-00e0815b8da8)
Redhat
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References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053644.html
- http://secunia.com/advisories/43006
- http://secunia.com/advisories/43104
- http://secunia.com/advisories/43167
- http://secunia.com/advisories/43354
- http://secunia.com/advisories/43613
- http://securitytracker.com/id?1024999
- http://www.debian.org/security/2011/dsa-2184
- http://www.isc.org/software/dhcp/advisories/cve-2011-0413
- http://www.kb.cert.org/vuls/id/686084
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:022
- http://www.osvdb.org/70680
- http://www.redhat.com/support/errata/RHSA-2011-0256.html
- http://www.securityfocus.com/bid/46035
- http://www.vupen.com/english/advisories/2011/0235
- http://www.vupen.com/english/advisories/2011/0266
- http://www.vupen.com/english/advisories/2011/0300
- http://www.vupen.com/english/advisories/2011/0400
- http://www.vupen.com/english/advisories/2011/0583
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64959
- https://kb.isc.org/article/AA-00456