Vulnerabilities > CVE-2013-6282 - Improper Input Validation vulnerability in Linux Kernel
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.
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.
- 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.
Exploit-Db
description Linux Kernel < 3.4.5 - Local Root Exploit (ARM - Android 4.2.2 / 4.4). CVE-2013-6282. Local exploit for arm platform id EDB-ID:31574 last seen 2016-02-03 modified 2014-02-11 published 2014-02-11 reporter Piotr Szerman source https://www.exploit-db.com/download/31574/ title Linux Kernel < 3.4.5 - Local Root Exploit ARM - Android 4.2.2 / 4.4 description Android - get_user/put_user Exploit (Metasploit). CVE-2013-6282. Local exploit for Android platform. Tags: Metasploit Framework, Local file exploits/android/local/40975.rb id EDB-ID:40975 last seen 2016-12-29 modified 2016-12-29 platform android port published 2016-12-29 reporter Exploit-DB source https://www.exploit-db.com/download/40975/ title Android - get_user/put_user Exploit (Metasploit) type local
Metasploit
| description | This module exploits a missing check in the get_user and put_user API functions in the linux kernel before 3.5.5. The missing checks on these functions allow an unprivileged user to read and write kernel memory. This exploit first reads the kernel memory to identify the commit_creds and ptmx_fops address, then uses the write primitive to execute shellcode as uid 0. The exploit was first discovered in the wild in the vroot rooting application. |
| id | MSF:EXPLOIT/ANDROID/LOCAL/PUT_USER_VROOT |
| last seen | 2020-06-08 |
| modified | 2017-07-24 |
| published | 2016-10-17 |
| references | |
| reporter | Rapid7 |
| source | https://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/android/local/put_user_vroot.rb |
| title | Android get_user/put_user Exploit |
Nessus
NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1635.NASL description According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system. The kernel handles the basic functions of the operating system: memory allocation, process allocation, device input and output, etc.Security Fix(es):An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.(CVE-2018-20836)The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.(CVE-2019-11190)The Siemens R3964 line discipline driver in drivers/tty_r3964.c in the Linux kernel before 5.0.8 has multiple race conditions.(CVE-2019-11486)The Linux kernel before 5.1-rc5 allows page-i1/4z_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.(CVE-2019-11487)The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.(CVE-2019-11599)A n issue was discovered in the Linux kernel before 5.0.7. A NULL pointer dereference can occur when megasas_create_frame_pool() fails in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This causes a Denial of Service, related to a use-after-free.(CVE-2019-11810)In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.(CVE-2018-7191)net/ipv6etfilterf_conntrac k_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.(CVE-2012-2744)Heap-based buffer overflow in the udf_load_logicalvol function in fs/udf/super.c in the Linux kernel before 3.4.5 allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted UDF filesystem.(CVE-2012-3400)The mmc_ioctl_cdrom_read_data function in drivers/cdrom/cdrom.c in the Linux kernel through 3.10 allows local users to obtain sensitive information from kernel memory via a read operation on a malfunctioning CD-ROM drive.(CVE-2013-2164)The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.(CVE-2013-6282)The sctp_sf_do_5_2_4_dupcook function in net/sctp/sm_statefuns.c in the SCTP implementation in the Linux kernel before 3.8.5 does not properly handle associations during the processing of a duplicate COOKIE ECHO chunk, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted SCTP traffic.(CVE-2013-2206)A elevation of privilege vulnerability in the Broadcom wi-fi driver. Product: Android. Versions: Android kernel. Android ID: A-37351060. References: B-V2017060101.(CVE-2017-0786)An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c.(CVE-2019-11811)Not e1: kernel-4.19.36-vhulk1907.1.0.h529 and earlier versions in EulerOS Virtualization for ARM 64 3.0.2.0 return incorrect time information when executing the uname -a command.Note2: The kernel version number naming format has been changed after 4.19.36-1.2.184.aarch64, the new version format is 4.19.36-vhulk1907.1.0.hxxx.aarch64, which may lead to false positives of this security advisory. Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-13 modified 2019-05-30 plugin id 125587 published 2019-05-30 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125587 title EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2019-1635) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1186.NASL description According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system. The kernel handles the basic functions of the operating system: memory allocation, process allocation, device input and output, etc.Security Fix(es):Heap-based buffer overflow in the udf_load_logicalvol function in fs/udf/super.c in the Linux kernel before 3.4.5 allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted UDF filesystem.(CVE-2012-3400)The mmc_ioctl_cdrom_read_data function in drivers/cdrom/cdrom.c in the Linux kernel through 3.10 allows local users to obtain sensitive information from kernel memory via a read operation on a malfunctioning CD-ROM drive.(CVE-2013-2164)The sctp_sf_do_5_2_4_dupcook function in net/sctp/sm_statefuns.c in the SCTP implementation in the Linux kernel before 3.8.5 does not properly handle associations during the processing of a duplicate COOKIE ECHO chunk, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted SCTP traffic.(CVE-2013-2206)The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addresses, which allows attackers to read or modify the contents of arbitrary kernel memory locations via a crafted application, as exploited in the wild against Android devices in October and November 2013.(CVE-2013-6282)An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.(CVE-2018-20836)The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel before 5.0.8 has multiple race conditions.(CVE-2019-11486)The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.(CVE-2019-11487)The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.(CVE-2019-11599)A n issue was discovered in the Linux kernel before 5.0.7. A NULL pointer dereference can occur when megasas_create_frame_pool() fails in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This causes a Denial of Service, related to a use-after-free.(CVE-2019-11810)An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c.(CVE-2019-11811)A flaw was found in the Linux kernel last seen 2020-05-03 modified 2020-03-11 plugin id 134387 published 2020-03-11 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134387 title EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1186)
Packetstorm
| data source | https://packetstormsecurity.com/files/download/140277/put_user_vroot.rb.txt |
| id | PACKETSTORM:140277 |
| last seen | 2016-12-26 |
| published | 2016-12-26 |
| reporter | timwr |
| source | https://packetstormsecurity.com/files/140277/Android-get_user-put_user-Exploit.html |
| title | Android get_user/put_user Exploit |
Seebug
| bulletinFamily | exploit |
| description | No description provided by source. |
| id | SSV:84896 |
| last seen | 2017-11-19 |
| modified | 2014-07-01 |
| published | 2014-07-01 |
| reporter | Root |
| source | https://www.seebug.org/vuldb/ssvid-84896 |
| title | Linux ARM - Local Root Exploit |
The Hacker News
id THN:94A8976C00B182A05720DD5149AC5DE0 last seen 2018-01-27 modified 2016-11-30 published 2016-11-30 reporter Mohit Kumar source https://thehackernews.com/2016/11/hack-google-account.html title Over 1 Million Google Accounts Hacked by 'Gooligan' Android Malware id THN:C8A4219AFC2880AC311776A8C10BAE97 last seen 2018-01-27 modified 2017-11-28 published 2017-11-27 reporter Mohit Kumar source https://thehackernews.com/2017/11/android-spying-app.html title Google Detects Android Spyware That Spies On WhatsApp, Skype Calls id THN:608C3D3E206B655519193316EAFA2C22 last seen 2018-01-27 modified 2017-07-07 published 2017-07-06 reporter Swati Khandelwal source https://thehackernews.com/2017/07/copycat-rooting-malware.html title CopyCat Android Rooting Malware Infected 14 Million Devices
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8404663f81d212918ff85f493649a7991209fa04
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8404663f81d212918ff85f493649a7991209fa04
- http://www.codeaurora.org/projects/security-advisories/missing-access-checks-putusergetuser-kernel-api-cve-2013-6282
- http://www.codeaurora.org/projects/security-advisories/missing-access-checks-putusergetuser-kernel-api-cve-2013-6282
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5
- http://www.openwall.com/lists/oss-security/2013/11/14/11
- http://www.openwall.com/lists/oss-security/2013/11/14/11
- http://www.securityfocus.com/bid/63734
- http://www.securityfocus.com/bid/63734
- http://www.ubuntu.com/usn/USN-2067-1
- http://www.ubuntu.com/usn/USN-2067-1
- https://github.com/torvalds/linux/commit/8404663f81d212918ff85f493649a7991209fa04
- https://github.com/torvalds/linux/commit/8404663f81d212918ff85f493649a7991209fa04
- https://www.exploit-db.com/exploits/40975/
- https://www.exploit-db.com/exploits/40975/