Vulnerabilities > CVE-2020-8130 - OS Command Injection vulnerability in multiple products
Attack vector
LOCAL Attack complexity
HIGH Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
There is an OS command injection vulnerability in Ruby Rake < 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character `|`.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- 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.
- Command Delimiters An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or a blacklist input validation, as opposed to whitelist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or blacklist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
- Exploiting Multiple Input Interpretation Layers An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
- Argument Injection An attacker changes the behavior or state of a targeted application through injecting data or command syntax through the targets use of non-validated and non-filtered arguments of exposed services or methods.
- OS Command Injection In this type of an attack, an adversary injects operating system commands into existing application functions. An application that uses untrusted input to build command strings is vulnerable. An adversary can leverage OS command injection in an application to elevate privileges, execute arbitrary commands and compromise the underlying operating system.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-2120.NASL description There is an OS command injection vulnerability in Rake (a ruby make-like utility) < 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character `|`. For Debian 8 last seen 2020-03-17 modified 2020-02-27 plugin id 134093 published 2020-02-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134093 title Debian DLA-2120-1 : rake security update code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DLA-2120-1. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(134093); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/02"); script_cve_id("CVE-2020-8130"); script_name(english:"Debian DLA-2120-1 : rake security update"); script_summary(english:"Checks dpkg output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security update." ); script_set_attribute( attribute:"description", value: "There is an OS command injection vulnerability in Rake (a ruby make-like utility) < 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character `|`. For Debian 8 'Jessie', this problem has been fixed in version 10.3.2-2+deb8u1. We recommend that you upgrade your rake 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/2020/02/msg00026.html" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/jessie/rake" ); script_set_attribute(attribute:"solution", value:"Upgrade the affected rake package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/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:debian:debian_linux:rake"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/24"); script_set_attribute(attribute:"patch_publication_date", value:"2020/02/26"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/27"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 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:"8.0", prefix:"rake", reference:"10.3.2-2+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");
NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0737-1.NASL description This update for ruby2.5 toversion 2.5.7 fixes the following issues : ruby 2.5 was updated to version 2.5.7 CVE-2020-8130: Fixed a command injection in intree copy of rake (bsc#1164804). CVE-2019-16255: Fixed a code injection vulnerability of Shell#[] and Shell#test (bsc#1152990). CVE-2019-16254: Fixed am HTTP response splitting in WEBrick (bsc#1152992). CVE-2019-15845: Fixed a null injection vulnerability of File.fnmatch and File.fnmatch? (bsc#1152994). CVE-2019-16201: Fixed a regular expression denial of service of WEBrick Digest access authentication (bsc#1152995). CVE-2012-6708: Fixed an XSS in JQuery CVE-2015-9251: Fixed an XSS in JQuery Fixed unit tests (bsc#1140844) Removed some unneeded test files (bsc#1162396). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-26 modified 2020-03-23 plugin id 134824 published 2020-03-23 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134824 title SUSE SLED15 / SLES15 Security Update : Recommended update for ruby2.5 (SUSE-SU-2020:0737-1) NASL family Fedora Local Security Checks NASL id FEDORA_2020-28E06B5F08.NASL description A security flaw is found on rake which may case arbitrary command execution under file existence with crafted name. This new rpm will fix the issue (CVE-2020-8130) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-04-30 modified 2020-04-27 plugin id 135989 published 2020-04-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135989 title Fedora 30 : rubygem-rake (2020-28e06b5f08) NASL family Fedora Local Security Checks NASL id FEDORA_2020-DC1AE17BB5.NASL description A security flaw is found on rake which may case arbitrary command execution under file existence with crafted name. This new rpm will fix the issue (CVE-2020-8130) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-04-30 modified 2020-04-27 plugin id 135999 published 2020-04-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135999 title Fedora 31 : rubygem-rake (2020-dc1ae17bb5) NASL family SuSE Local Security Checks NASL id OPENSUSE-2020-395.NASL description This update for ruby2.5 toversion 2.5.7 fixes the following issues: 	 ruby 2.5 was updated to version 2.5.7 - CVE-2020-8130: Fixed a command injection in intree copy of rake (bsc#1164804). - CVE-2019-16255: Fixed a code injection vulnerability of Shell#[] and Shell#test (bsc#1152990). - CVE-2019-16254: Fixed am HTTP response splitting in WEBrick (bsc#1152992). - CVE-2019-15845: Fixed a null injection vulnerability of File.fnmatch and File.fnmatch? (bsc#1152994). - CVE-2019-16201: Fixed a regular expression denial of service of WEBrick Digest access authentication (bsc#1152995). - CVE-2012-6708: Fixed an XSS in JQuery - CVE-2015-9251: Fixed an XSS in JQuery - Fixed unit tests (bsc#1140844) - Removed some unneeded test files (bsc#1162396). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-04-07 modified 2020-04-02 plugin id 135161 published 2020-04-02 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135161 title openSUSE Security Update : ruby2.5 (openSUSE-2020-395) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4295-1.NASL description It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-18 modified 2020-03-06 plugin id 134300 published 2020-03-06 reporter Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134300 title Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : rake vulnerability (USN-4295-1)
References
- https://hackerone.com/reports/651518
- https://lists.debian.org/debian-lts-announce/2020/02/msg00026.html
- https://usn.ubuntu.com/4295-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VXMX4ARNX2JLRJMSH4N3J3UBMUT5CI44/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/523CLQ62VRN3VVC52KMPTROCCKY4Z36B/