VDB-92411 · CVE-2016-1417 · BID 93269

Snort 2.9.7.0-WIN32 Library tcapi.dll untrusted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Snort 2.9.7.0-WIN32. Affected by this vulnerability is an unknown functionality in the library tcapi.dll of the component Library Handler. The manipulation leads to untrusted search path. This vulnerability is documented as CVE-2016-1417. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Snort 2.9.7.0-WIN32. It has been rated as critical. This issue affects an unknown code in the library tcapi.dll of the component Library Handler. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability.

The weakness was released 09/29/2016 by John Page (hyp3rlinx) as SNORT-DLL-HIJACK.txt as not defined advisory (Website). It is possible to read the advisory at hyp3rlinx.altervista.org. The identification of this vulnerability is CVE-2016-1417 since 01/04/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.

A public exploit has been developed by John Page (hyp3rlinx) in ANSI C and been published immediately after the advisory. The exploit is available at hyp3rlinx.altervista.org. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 161 days. During that time the estimated underground price was around $0-$5k. The code used by the exploit is:

#include <windows.h>

//gcc -c tcapi.c
//gcc -shared -o tcapi.dll tcapi.o

BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, LPVOID reserved){
  switch (reason) {
  case DLL_PROCESS_ATTACH:
    MessageBox(NULL, "DLL Hijacking", "Done!", MB_OK);  
    break;
  }

return 0;
}

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 databases at SecurityFocus (BID 93269†) and SecurityTracker (ID 1036936†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: John Page (hyp3rlinx)
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

01/04/2016 🔍
04/21/2016 +108 days 🔍
09/29/2016 +161 days 🔍
09/29/2016 +0 days 🔍
09/30/2016 +1 days 🔍
10/04/2016 +4 days 🔍
10/05/2016 +1 days 🔍
01/23/2017 +110 days 🔍
05/14/2026 +3398 days 🔍

Sourcesinfo

Advisory: SNORT-DLL-HIJACK.txt
Researcher: John Page (hyp3rlinx)
Status: Not defined

CVE: CVE-2016-1417 (🔍)
GCVE (CVE): GCVE-0-2016-1417
GCVE (VulDB): GCVE-100-92411
SecurityFocus: 93269 - Snort CVE-2016-1417 DLL Loading Remote Code Execution Vulnerability
SecurityTracker: 1036936

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

Entryinfo

Created: 10/05/2016 11:15
Updated: 05/14/2026 12:31
Changes: 10/05/2016 11:15 (64), 05/02/2019 07:48 (11), 09/22/2022 11:21 (3), 06/30/2024 00:16 (15), 05/14/2026 12:31 (5)
Complete: 🔍
Cache ID: 216::103

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

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