NetBSD 4.0 ftpd Long Command Chain cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in NetBSD 4.0. This impacts an unknown function of the component ftpd. Performing a manipulation as part of Long Command Chain results in cross-site request forgery. This vulnerability is reported as CVE-2008-4247. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in NetBSD 4.0 (Operating System). This affects an unknown functionality of the component ftpd. The manipulation as part of a Long Command Chain leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

ftpd in OpenBSD 4.3, FreeBSD 7.0, NetBSD 4.0, Solaris, and possibly other operating systems interprets long commands from an FTP client as multiple commands, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and execute arbitrary FTP commands via a long ftp:// URI that leverages an existing session from the FTP client implementation in a web browser.

The weakness was disclosed 09/29/2008 by Maksymilian Arciemowicz with SecurityReason (Website). The advisory is shared at securityreason.com. This vulnerability is uniquely identified as CVE-2008-4247 since 09/25/2008. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 63078 (Piwik Detection), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118349 (Solaris FTP Server Component Cross-Site Request Forgery Vulnerability).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cvsweb.netbsd.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (45434), Exploit-DB (32399), Tenable (63078), SecurityFocus (BID 31289†) and OSVDB (51371†). The entries VDB-44191 and VDB-49565 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
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: 63078
Nessus Name: Piwik Detection
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61656
OpenVAS Name: FreeBSD Ports: proftpd, proftpd-mysql
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Patch: cvsweb.netbsd.org

Timelineinfo

09/20/2008 🔍
09/25/2008 +5 days 🔍
09/25/2008 +0 days 🔍
09/25/2008 +0 days 🔍
09/29/2008 +4 days 🔍
10/17/2008 +18 days 🔍
10/28/2008 +11 days 🔍
11/13/2008 +16 days 🔍
01/14/2009 +62 days 🔍
11/28/2012 +1413 days 🔍
12/27/2025 +4777 days 🔍

Sourcesinfo

Advisory: securityreason.com
Researcher: Maksymilian Arciemowicz
Organization: SecurityReason
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-4247 (🔍)
GCVE (CVE): GCVE-0-2008-4247
GCVE (VulDB): GCVE-100-3837
X-Force: 45434
SecurityFocus: 31289 - Multiple Vendor FTP Server Long Command Handling Security Vulnerability
Secunia: 33341 - FreeBSD ftpd Long Command Processing Vulnerability, Less Critical
OSVDB: 51371 - tnftpd FTP Command Handling CSRF
SecurityTracker: 1021112
Vulnerability Center: 19990 - ftpd in OpenBSD 4.3, FreeBSD 7.0, and NetBSD 4.0 Cross-Site Request Forgery Vulnerability, Medium

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

Entryinfo

Created: 10/17/2008 14:33
Updated: 12/27/2025 17:34
Changes: 10/17/2008 14:33 (91), 08/20/2019 16:34 (3), 05/25/2025 23:37 (18), 12/27/2025 17:34 (11)
Complete: 🔍
Cache ID: 216:380:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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