VDB-98349 · CVE-2017-5566 · BID 97022

AVG Ultimate/Internet Security/AntiVirus FREE up to 17.1 Self-Protection access control

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in AVG Ultimate, Internet Security and AntiVirus FREE up to 17.1. This impacts an unknown function of the component Self-Protection. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2017-5566. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in AVG Ultimate, Internet Security and AntiVirus FREE up to 17.1 (Anti-Malware Software). It has been classified as critical. This affects some unknown processing of the component Self-Protection. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Code injection vulnerability in AVG Ultimate 17.1 (and earlier), AVG Internet Security 17.1 (and earlier), and AVG AntiVirus FREE 17.1 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any AVG process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack.

The bug was discovered 03/22/2017. The weakness was shared 03/21/2017 (Website). The advisory is shared at cybellum.com. This vulnerability is uniquely identified as CVE-2017-5566 since 01/22/2017. An attack has to be approached locally. Required for exploitation is a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 370353 (AVG Anti-Virus DoubleAgent Code injection vulnerability).

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 vulnerability database at SecurityFocus (BID 97022†). The entries VDB-98348, VDB-98350, VDB-98351 and VDB-98352 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 802469
OpenVAS Name: AVG Antivirus Code Injection Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/22/2017 🔍
03/21/2017 +58 days 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
03/22/2017 +1 days 🔍
03/22/2017 +0 days 🔍
08/26/2024 +2714 days 🔍

Sourcesinfo

Advisory: cybellum.com
Status: Not defined

CVE: CVE-2017-5566 (🔍)
GCVE (CVE): GCVE-0-2017-5566
GCVE (VulDB): GCVE-100-98349
SecurityFocus: 97022 - Multiple AVG Products CVE-2017-5566 DLL Loading Local Code Injection Vulnerability
OSVDB: - CVE-2017-5566 - AVG - Multiple Products - DoubleAgent Issue

See also: 🔍

Entryinfo

Created: 03/22/2017 11:11
Updated: 08/26/2024 09:13
Changes: 03/22/2017 11:11 (64), 08/20/2020 10:51 (4), 08/26/2024 09:13 (17)
Complete: 🔍
Cache ID: 216::103

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