Linux Kernel 2.6.0/3.12 Floppy Device /drivers/block/floppy.c raw_cmd_copyin access control

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel 2.6.0/3.12. Affected by this issue is the function raw_cmd_copyin of the file /drivers/block/floppy.c of the component Floppy Device Handler. Such manipulation leads to access control. This vulnerability is referenced as CVE-2014-1737. The attack can only be performed from a local environment. No exploit is available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.0/3.12 (Operating System) and classified as critical. Affected by this issue is the function raw_cmd_copyin of the file /drivers/block/floppy.c of the component Floppy Device Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.

The issue has been introduced in 12/18/2003. The weakness was published 04/28/2014 by Matthew Daley as floppy: ignore kernel-only members in FDRAWCMD ioctl input as confirmed git commit (GIT Repository). The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2014-1737 since 01/29/2014. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The following code is the reason for this vulnerability: 

if (ret)
   return -EFAULT;

The vulnerability was handled as a non-public zero-day exploit for at least 3784 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 74049 (Fedora 20 : kernel-3.14.4-200.fc20 (2014-6357)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167228 (SUSE Enterprise Linux Security Update for Linux Kernel (SUSE-SU-2014:0807-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:

ptr->kernel_data = NULL;
if (ret)
   return -EFAULT;

The vulnerability is also documented in the databases at X-Force (93050), Tenable (74049), SecurityFocus (BID 67300†), Secunia (SA59309†) and SecurityTracker (ID 1030474†). bugzilla.redhat.com is providing further details. Similar entries are available at VDB-11302, VDB-11315, VDB-11755 and VDB-12214. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Not Affected

  • Red Hat Enterprise Linux 5/6
  • Red Hat Enterprise MRG 2

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 8.4
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74049
Nessus Name: Fedora 20 : kernel-3.14.4-200.fc20 (2014-6357)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 702926
OpenVAS Name: Debian Security Advisory DSA 2926-1 (linux - security update
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

12/18/2003 🔍
01/29/2014 +3695 days 🔍
04/28/2014 +89 days 🔍
05/05/2014 +7 days 🔍
05/09/2014 +4 days 🔍
05/09/2014 +0 days 🔍
05/11/2014 +2 days 🔍
05/11/2014 +0 days 🔍
05/13/2014 +2 days 🔍
05/19/2014 +6 days 🔍
06/26/2014 +38 days 🔍
06/19/2021 +2550 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: floppy: ignore kernel-only members in FDRAWCMD ioctl input
Researcher: Matthew Daley
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-1737 (🔍)
GCVE (CVE): GCVE-0-2014-1737
GCVE (VulDB): GCVE-100-13190

OVAL: 🔍

X-Force: 93050 - Linux Kernel raw_cmd_copyin() privilege escalation, High Risk
SecurityFocus: 67300 - Linux Kernel CVE-2014-1737 Function Local Privilege Escalation Vulnerability
Secunia: 59309
SecurityTracker: 1030474 - Linux Kernel Floppy Driver Bugs Let Local Users Gain Elevated Privileges
Vulnerability Center: 44420 - Linux Kernel Local Privilege Escalation and DoS in raw_cmd_copyin Function, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/13/2014 14:35
Updated: 06/19/2021 13:30
Changes: 05/13/2014 14:35 (58), 03/10/2017 09:45 (39), 06/19/2021 13:24 (3), 06/19/2021 13:30 (1)
Complete: 🔍
Cache ID: 216:5CF:103

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