VDB-1745 · EDB 1213 · SA16786

Snort up to 2.4.1 Verbose Mode PrintTcpOptions TCP SACK Packet denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Snort up to 2.4.1. The impacted element is the function PrintTcpOptions of the component Verbose Mode. The manipulation as part of TCP SACK Packet leads to denial of service. Remote exploitation of the attack is possible. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Snort up to 2.4.1. It has been rated as critical. This issue affects the function PrintTcpOptions of the component Verbose Mode. The manipulation as part of a TCP SACK Packet leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was published 09/13/2005 by Jennifer Steffens with Snort Team (Website). The advisory is shared at snort.org. The attack may be initiated remotely. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1499 for this issue.

After before and not just, there has been an exploit disclosed. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.

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

The vulnerability is also documented in the databases at Exploit-DB (1213), OSVDB (19346†) and Secunia (SA16786†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

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: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: snort.org

Timelineinfo

09/11/2005 🔍
09/13/2005 +2 days 🔍
09/13/2005 +0 days 🔍
09/13/2005 +0 days 🔍
07/04/2019 +5041 days 🔍

Sourcesinfo

Advisory: snort.org
Researcher: Jennifer Steffens
Organization: Snort Team
Status: Not defined

GCVE (VulDB): GCVE-100-1745
Secunia: 16786 - Snort TCP SACK Option Handling Denial of Service, Moderately Critical
OSVDB: 19346 - Snort TCP SACK Option PrintTcpOptions() Crafted Packet DoS

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

Entryinfo

Created: 09/13/2005 13:11
Updated: 07/04/2019 12:44
Changes: 09/13/2005 13:11 (57), 07/04/2019 12:44 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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