NCSA Telnet ftp=yes privileges management

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

A vulnerability classified as critical was found in NCSA Telnet (Remote Access Software) (the affected version is unknown). This vulnerability affects an unknown function. The manipulation of the argument ftp=yes with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-269. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

the default configuration of ncsa telnet package for macintosh and pc enables ftp even though it does not include an "ftp=yes" line which allows remote attackers to read and modify arbitrary files.

The weakness was released 09/10/1991 as CA-1991-15 as confirmed advisory (CERT.org). The advisory is shared for download at cert.org. This vulnerability was named CVE-1999-1090. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (1844).

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

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

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-269
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: no mitigation known
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Timelineinfoedit

09/10/1991 🔍
09/10/1991 +0 days 🔍
06/16/2014 +8315 days 🔍
04/03/2019 +1752 days 🔍

Sourcesinfoedit

Advisory: CA-1991-15
Status: Confirmed

CVE: CVE-1999-1090 (🔍)
X-Force: 1844 - NCSA Telnet FTP server allows remote users read/write access to computer

Entryinfoedit

Created: 06/16/2014 03:30 PM
Updated: 04/03/2019 11:47 AM
Changes: (12) software_type vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai source_cve_nvd_published source_cve_nvd_summary source_xforce_title source_xforce_identifier vulnerability_cwe
Complete: 🔍

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