Linux Kernel 2.6.20.1 tftp path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel 2.6.20.1. This vulnerability affects unknown code of the component tftp. The manipulation leads to path traversal. This vulnerability is listed as CVE-1999-0183. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.20.1 (Operating System) and classified as critical. This issue affects an unknown functionality of the component tftp. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, and integrity. The summary by CVE is:

linux implementations of tftp would allow access to files outside the restricted directory.

The issue has been introduced in 02/05/2007. The weakness was presented 09/01/1997 by Aviram Jenik. The identification of this vulnerability is CVE-1999-0183. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 18262 (TFTP Traversal Arbitrary File Access), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38064 (TFTP Daemon Theft of '/etc/passwd' file).

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 518.

The vulnerability is also documented in the databases at X-Force (308), Tenable (18262), SecurityFocus (BID 6198†) and Vulnerability Center (SBV-703†). See VDB-13637, VDB-19995, VDB-46098 and VDB-46068 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Class: Path traversal
CWE: CWE-22
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: 18262
Nessus Name: TFTP Traversal Arbitrary File Access
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 18262
OpenVAS Name: get_kb_item(tftp/+port+/filename/+i
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Snort ID: 518
Snort Message: PROTOCOL-TFTP Put
Snort Class: 🔍

Suricata ID: 2100518
Suricata Class: 🔍
Suricata Message: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

09/01/1997 🔍
09/01/1997 +0 days 🔍
09/01/1997 +0 days 🔍
11/18/2002 +1904 days 🔍
01/23/2003 +66 days 🔍
05/16/2005 +844 days 🔍
02/05/2007 +630 days 🔍
06/18/2014 +2690 days 🔍
10/26/2025 +4148 days 🔍

Sourcesinfo

Vendor: kernel.org

Researcher: Aviram Jenik
Status: Confirmed

CVE: CVE-1999-0183 (🔍)
GCVE (CVE): GCVE-0-1999-0183
GCVE (VulDB): GCVE-100-13973
X-Force: 308
SecurityFocus: 6198 - TFTPD32 Arbitrary File Download/Upload Vulnerability
Vulnerability Center: 703 - Unrestricted Linux TFTP Access, Medium

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

Entryinfo

Created: 06/18/2014 16:10
Updated: 10/26/2025 15:37
Changes: 06/18/2014 16:10 (76), 05/08/2019 10:08 (5), 06/23/2021 04:54 (3), 10/26/2025 15:37 (24)
Complete: 🔍
Cache ID: 216::103

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