VDB-14643 · CVE-1999-0754 · BID 255

ISC INN 2.1/2.2 inndstart INNCONF privileges management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in ISC INN 2.1/2.2. This affects an unknown part of the file inndstart. Performing a manipulation of the argument INNCONF as part of Environment Variable results in privileges management. This vulnerability was named CVE-1999-0754. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in ISC INN 2.1/2.2. This affects some unknown processing of the file inndstart. The manipulation of the argument INNCONF as part of a Environment Variable leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The INN inndstart program allows local users to gain privileges by specifying an alternate configuration file using the INNCONF environmental variable.

The weakness was presented 05/11/1999 (Website). It is possible to read the advisory at redhat.com. This vulnerability is uniquely identified as CVE-1999-0754. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 255†). Further details are available at redhat.com. See VDB-14645 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Not Affected

ISC INN 1.7/1.7.2

Productinfo

Vendor

Name

Version

License

open-source

Website

Vendor: https://www.isc.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/11/1999 🔍
05/11/1999 +0 days 🔍
05/11/1999 +0 days 🔍
06/20/2014 +5519 days 🔍
04/19/2026 +4321 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: redhat.com
Status: Confirmed

CVE: CVE-1999-0754 (🔍)
GCVE (CVE): GCVE-0-1999-0754
GCVE (VulDB): GCVE-100-14643
SecurityFocus: 255 - ISC INN inndstart INNCONF Vulnerability

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/21/2014 00:14
Updated: 04/19/2026 03:03
Changes: 06/21/2014 00:14 (50), 04/04/2019 14:26 (6), 04/19/2026 03:03 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.