VDB-130549 · CVE-2018-20252 · BID 106948

Rarlab WinRar prior 5.70 beta 1 Archive out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Rarlab WinRar. Affected by this issue is some unknown functionality of the component Archive Handler. This manipulation causes out-of-bounds write. The identification of this vulnerability is CVE-2018-20252. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Rarlab WinRar (File Compression Software) and classified as critical. Affected by this vulnerability is some unknown processing of the component Archive Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

There is an out-of-bounds writes vulnerability during parsing of crafted ACE and RAR archive formats. Successful exploitation could lead to arbitrary code execution in the context of the current user.

The bug was discovered 02/05/2019. The weakness was shared 02/05/2019 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2018-20252 since 12/19/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371635 (WinRAR Arbitrary Code Execution Vulnerability).

Upgrading to version 5.70 beta 1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106948†). The entries VDB-130547, VDB-130548 and VDB-130837 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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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WinRar 5.70 beta 1

Timelineinfo

12/19/2018 🔍
02/05/2019 +48 days 🔍
02/05/2019 +0 days 🔍
02/05/2019 +0 days 🔍
02/06/2019 +1 days 🔍
05/08/2020 +457 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-2018-20252 (🔍)
GCVE (CVE): GCVE-0-2018-20252
GCVE (VulDB): GCVE-100-130549
SecurityFocus: 106948 - WinRAR Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 02/06/2019 13:43
Updated: 05/08/2020 12:55
Changes: 02/06/2019 13:43 (60), 05/08/2020 12:55 (4)
Complete: 🔍
Cache ID: 216::103

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