VDB-100351 · CVE-2016-4293 · BID 92327

Hancom Office 9.1.0.2176 cell File SetDefTableStyle memory corruption

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 Hancom Office 9.1.0.2176. This impacts the function CBookBase::SetDefTableStyle of the component cell File Handler. This manipulation causes memory corruption. This vulnerability is handled as CVE-2016-4293. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in Hancom Office 9.1.0.2176. Affected by this vulnerability is the function CBookBase::SetDefTableStyle of the component cell File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Multiple heap-based buffer overflows in the (1) CBookBase::SetDefTableStyle and (2) CBookBase::SetDefPivotStyle functions in Hancom Office 2014 VP allow remote attackers to execute arbitrary code via a crafted Hangul Hcell Document (.cell) file.

The bug was discovered 08/04/2016. The weakness was released 04/20/2017 by Cisco with Cisco Talos (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2016-4293 since 04/27/2016. 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. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 259 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92327†). Entries connected to this vulnerability are available at VDB-95077, VDB-95078 and VDB-95079. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

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: Memory corruption
CWE: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/27/2016 🔍
08/04/2016 +99 days 🔍
08/04/2016 +0 days 🔍
04/20/2017 +259 days 🔍
04/20/2017 +0 days 🔍
04/21/2017 +1 days 🔍
12/21/2020 +1340 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Cisco Talos (Cisco)
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2016-4293 (🔍)
GCVE (CVE): GCVE-0-2016-4293
GCVE (VulDB): GCVE-100-100351
SecurityFocus: 92327 - Hancom Office 2014 VP Multiple Local Arbitrary Code Execution Vulnerabilities
OSVDB: - CVE-2016-4293 - Hancom Office - Multiple Buffer Overflow Issues

See also: 🔍

Entryinfo

Created: 04/21/2017 09:47
Updated: 12/21/2020 09:50
Changes: 04/21/2017 09:47 (65), 09/18/2020 17:38 (2), 12/21/2020 09:50 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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