VDB-130217 · CVE-2019-1638 · BID 106704

Cisco WebEx Network Recording Player/Webex Player on Windows memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Cisco WebEx Network Recording Player and Webex Player on Windows and classified as critical. Affected is an unknown function. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2019-1638. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Cisco WebEx Network Recording Player and Webex Player on Windows (Unified Communication Software) (the affected version unknown) and classified as critical. This issue affects an unknown part. 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. The summary by CVE is:

A vulnerability in the Cisco Webex Network Recording Player for Microsoft Windows and the Cisco Webex Player for Microsoft Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerability exist because the affected software improperly validates Advanced Recording Format (ARF) and Webex Recording Format (WRF) files. An attacker could exploit this vulnerability by sending a user a malicious ARF or WRF file via a link or email attachment and persuading the user to open the file with the affected software. Successful exploitation could allow the attacker to execute arbitrary code on the affected system.

The bug was discovered 01/23/2019. The weakness was disclosed 01/23/2019 by Kushal Arvind Shah with Zero Day Initiative as cisco-sa-20190123-webex-rce as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2019-1638 since 12/06/2018. 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. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/03/2023).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371596 (Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities(cisco-sa-20190123-webex-rce)).

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 106704†). The entries VDB-130216, VDB-130218, VDB-130219 and VDB-130220 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

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

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Cisco Systems, Inc.): 🔍

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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
01/23/2019 +48 days 🔍
01/23/2019 +0 days 🔍
01/23/2019 +0 days 🔍
01/23/2019 +0 days 🔍
01/24/2019 +1 days 🔍
07/03/2023 +1621 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190123-webex-rce
Researcher: Kushal Arvind Shah
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2019-1638 (🔍)
GCVE (CVE): GCVE-0-2019-1638
GCVE (VulDB): GCVE-100-130217
SecurityFocus: 106704 - Cisco WebEx Network Recording Player Multiple Remote Code Execution Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/24/2019 15:24
Updated: 07/03/2023 11:16
Changes: 01/24/2019 15:24 (62), 05/05/2020 20:25 (5), 07/03/2023 11:16 (14)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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