Linux Kernel 2.4.x Serial Driver /proc/tty/driver/serial information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel 2.4.x. This affects an unknown function of the file /proc/tty/driver/serial of the component Serial Driver. This manipulation causes information disclosure. This vulnerability appears as CVE-2003-0461. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 2.4.x (Operating System). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the file /proc/tty/driver/serial of the component Serial Driver. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

/proc/tty/driver/serial in Linux 2.4.x reveals the exact number of characters used in serial links, which could allow local users to obtain potentially sensitive information such as the length of passwords.

The bug was discovered 07/21/2003. The weakness was presented 08/27/2003 (Website). It is possible to read the advisory at redhat.com. This vulnerability is known as CVE-2003-0461 since 06/26/2003. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 37 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 12494 (RHEL 3 : kernel (RHSA-2004:188)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115052 (Red Hat Linux Kernel Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published 10 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (12708), Tenable (12494), SecurityFocus (BID 10330†), OSVDB (10298†) and Vulnerability Center (SBV-7990†). See VDB-20683, VDB-20744, VDB-20756 and VDB-20757 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 12494
Nessus Name: RHEL 3 : kernel (RHSA-2004:188)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53647
OpenVAS Name: Debian Security Advisory DSA 358-1 (linux-kernel-i386, linux-kernel-alpha)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

06/26/2003 🔍
07/21/2003 +25 days 🔍
08/27/2003 +37 days 🔍
08/27/2003 +0 days 🔍
08/27/2003 +0 days 🔍
05/11/2004 +258 days 🔍
05/12/2004 +1 days 🔍
07/06/2004 +55 days 🔍
05/16/2005 +314 days 🔍
08/14/2014 +3377 days 🔍
06/01/2019 +1752 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: redhat.com
Status: Not defined

CVE: CVE-2003-0461 (🔍)
GCVE (CVE): GCVE-0-2003-0461
GCVE (VulDB): GCVE-100-20743

OVAL: 🔍

X-Force: 12708
SecurityFocus: 10330 - Linux Kernel Serial Driver Proc File Information Disclosure Vulnerability
OSVDB: 10298 - Linux kernel /proc/tty/driver/serial could allow attacker to obtain information
Vulnerability Center: 7990 - Information Disclosure in Linux Kernel 2.4.* via \x27 /proc/tty/driver/serial\x27 File, Low

See also: 🔍

Entryinfo

Created: 08/15/2014 00:22
Updated: 06/01/2019 14:42
Changes: 08/15/2014 00:22 (76), 06/01/2019 14:42 (7)
Complete: 🔍
Cache ID: 216::103

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