FreeBSD up to 5.4 sendfile information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in FreeBSD up to 5.4. Affected by this issue is the function sendfile. The manipulation results in information disclosure. This vulnerability is reported as CVE-2005-0708. The attacker must have access to the local network to execute the attack. Moreover, an exploit is present. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical has been found in FreeBSD up to 5.4 (Operating System). Affected is the function sendfile. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The sendfile system call in FreeBSD 4.8 through 4.11 and 5 through 5.4 can transfer portions of kernel memory if a file is truncated while it is being sent, which could allow remote attackers to obtain sensitive information.

The bug was discovered 04/04/2005. The weakness was disclosed 04/04/2005 by Sven Berkvens and Marc Olzheim (Website). The advisory is shared for download at ftp.freebsd.org. This vulnerability is traded as CVE-2005-0708 since 03/11/2005. The attack can only be initiated within the local network. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1592.

After immediately, there has been an exploit disclosed. The exploit is shared for download at securiteam.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 17984 (FreeBSD : SA-05:02.sendfile), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks.

Upgrading to version 4-STABLE eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.freebsd.org. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the databases at X-Force (19982), Tenable (17984), SecurityFocus (BID 12993†), OSVDB (15289†) and Secunia (SA14842†). The entry VDB-1333 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 17984
Nessus Name: FreeBSD : SA-05:02.sendfile
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 52661
OpenVAS Name: FreeBSD Security Advisory (FreeBSD-SA-05:02.sendfile.asc)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: FreeBSD 4-STABLE
Patch: ftp.freebsd.org

Timelineinfo

03/11/2005 🔍
04/04/2005 +24 days 🔍
04/04/2005 +0 days 🔍
04/04/2005 +0 days 🔍
04/04/2005 +0 days 🔍
04/05/2005 +1 days 🔍
04/05/2005 +0 days 🔍
04/06/2005 +1 days 🔍
04/06/2005 +0 days 🔍
04/06/2005 +0 days 🔍
04/12/2005 +5 days 🔍
04/12/2005 +0 days 🔍
05/02/2005 +20 days 🔍
07/02/2019 +5174 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: ftp.freebsd.org
Researcher: Sven Berkvens, Marc Olzheim
Status: Confirmed

CVE: CVE-2005-0708 (🔍)
GCVE (CVE): GCVE-0-2005-0708
GCVE (VulDB): GCVE-100-1332
X-Force: 19982 - FreeBSD sendfile(2) information disclosure, Medium Risk
SecurityFocus: 12993 - FreeBSD Kernel SendFile System Call Local Information Disclosure Vulnerability
Secunia: 14842 - FreeBSD sendfile Kernel Memory Disclosure Vulnerability, Less Critical
OSVDB: 15289 - FreeBSD sendfile Aborted File Copy Arbitrary Kernel Memory Disclosure
SecurityTracker: 1013641
Vulnerability Center: 7563 - Information Disclosure in FreeBSD 5.4 and Earlier via Sendfile System Call, Low

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/12/2005 14:21
Updated: 07/02/2019 09:29
Changes: 04/12/2005 14:21 (98), 07/02/2019 09:29 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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