Darren Reed IPFilter 3.3.15/3.4.3 Rules race condition

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Darren Reed IPFilter 3.3.15/3.4.3. This affects an unknown function of the component Rules Handler. This manipulation causes race condition. This vulnerability is registered as CVE-2000-0553. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Darren Reed IPFilter 3.3.15/3.4.3. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component Rules Handler. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect integrity. The summary by CVE is:

Race condition in IPFilter firewall 3.4.3 and earlier, when configured with overlapping "return-rst" and "keep state" rules, allows remote attackers to bypass access restrictions.

The weakness was published 05/25/2000 by EMF (Website). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is known as CVE-2000-0553. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but an exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4994), SecurityFocus (BID 1308†) and OSVDB (1377†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

05/25/2000 🔍
05/25/2000 +0 days 🔍
05/26/2000 +1 days 🔍
05/26/2000 +0 days 🔍
02/21/2003 +1001 days 🔍
06/24/2014 +4140 days 🔍
04/21/2026 +4319 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: EMF
Status: Confirmed

CVE: CVE-2000-0553 (🔍)
GCVE (CVE): GCVE-0-2000-0553
GCVE (VulDB): GCVE-100-15595
X-Force: 4994 - IPFilter firewall race condition
SecurityFocus: 1308 - IPFilter Firewall Race Condition Vulnerability
OSVDB: 1377 - IPFilter Firewall SYN/RST Race Condition

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

Entryinfo

Created: 06/24/2014 18:09
Updated: 04/21/2026 17:35
Changes: 06/24/2014 18:09 (59), 05/24/2018 21:36 (1), 04/21/2026 17:35 (18)
Complete: 🔍
Cache ID: 216::103

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

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