Ericom AccessNow Server AccessServer32.exe memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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10.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Ericom AccessNow Server. Impacted is an unknown function of the file AccessServer32.exe. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2014-3913. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Ericom AccessNow Server (affected version not known). Affected by this issue is some unknown functionality of the file AccessServer32.exe. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in AccessServer32.exe in Ericom AccessNow Server allows remote attackers to execute arbitrary code via a request for a non-existent file.

The weakness was disclosed 06/04/2014 (Website). The advisory is shared for download at zerodayinitiative.com. This vulnerability is handled as CVE-2014-3913 since 05/29/2014. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/16/2024).

A public exploit has been developed by Metasploit in Ruby and been published 3 weeks after the advisory. The exploit is available at securityfocus.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 76311 (Ericom AccessNow Server < 3.3.1.4095 Stack-Based Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122470 (Ericom AccessNow Server Stack Buffer Overflow Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16461.

The vulnerability is also documented in the databases at X-Force (93562), Exploit-DB (33817), Tenable (76311), SecurityFocus (BID 67777†) and Vulnerability Center (SBV-45393†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Metasploit
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 76311
Nessus Name: Ericom AccessNow Server < 3.3.1.4095 Stack-Based Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: ericom_access_now_bof.rb
MetaSploit Name: Ericom AccessNow Server Buffer Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

05/29/2014 🔍
06/02/2014 +4 days 🔍
06/02/2014 +0 days 🔍
06/04/2014 +2 days 🔍
06/04/2014 +0 days 🔍
06/19/2014 +15 days 🔍
06/19/2014 +0 days 🔍
06/30/2014 +11 days 🔍
07/15/2014 +15 days 🔍
03/26/2015 +254 days 🔍
12/16/2024 +3553 days 🔍

Sourcesinfo

Advisory: 127152
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3913 (🔍)
GCVE (CVE): GCVE-0-2014-3913
GCVE (VulDB): GCVE-100-69932
X-Force: 93562
SecurityFocus: 67777 - Ericom AccessNow Server 'AccessServer32.exe' Stack Buffer Overflow Vulnerability
Vulnerability Center: 45393 - Ericom AccessNow Server Remote Code Execution due to a Flaw in AccessServer32.exe, Critical

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

Entryinfo

Created: 03/26/2015 12:07
Updated: 12/16/2024 08:49
Changes: 03/26/2015 12:07 (65), 06/02/2017 07:36 (13), 03/22/2022 10:46 (2), 03/22/2022 10:52 (1), 12/16/2024 08:49 (16)
Complete: 🔍
Cache ID: 216::103

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