CVE-2021-1527— Cisco Webex Player Memory Corruption Vulnerability
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I. Basic Information for CVE-2021-1527
Vulnerability Information
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Vulnerability Title
Cisco Webex Player Memory Corruption Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in Cisco Webex Player for Windows and MacOS could allow an attacker to cause the affected software to terminate or to gain access to memory state information that is related to the vulnerable application. The vulnerability is due to insufficient validation of values in Webex recording files that are stored in Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a malicious WRF file to a user as a link or email attachment and then persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to crash the affected software and view memory state information.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Webex Network Webex Player 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Webex Network Webex Player是美国思科（Cisco）公司的一款用于播放视频会议记录的播放器。 Cisco Webex Player 存在缓冲区错误漏洞，攻击者可利用该漏洞导致受影响的软件终止或获得与受攻击应用程序相关的内存状态信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Webex Meetings | n/a | - |
II. Public POCs for CVE-2021-1527
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-player-kxtkFbnRvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-1527
Same Patch Batch · Cisco · 2021-06-04 · 15 CVEs total
| CVE-2021-1540 | 8.1 HIGH | Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities |
| CVE-2021-1539 | 8.1 HIGH | Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities |
| CVE-2021-1528 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerability |
| CVE-2021-1526 | 7.8 HIGH | Cisco Webex Player Memory Corruption Vulnerability |
| CVE-2021-1503 | 7.8 HIGH | Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability |
| CVE-2021-1502 | 7.8 HIGH | Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability |
| CVE-2021-1564 | 6.5 MEDIUM | Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer Discovery P |
| CVE-2021-1563 | 6.5 MEDIUM | Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer Discovery P |
| CVE-2021-1537 | 6.2 MEDIUM | Cisco ThousandEyes Recorder Information Disclosure Vulnerability |
| CVE-2021-1544 | 5.5 MEDIUM | Cisco Webex Meetings Client Software Logging Information Disclosure Vulnerability |
| CVE-2021-1517 | 5.0 MEDIUM | Cisco Webex Meetings and Webex Meetings Server Multimedia Sharing Security Bypass Vulnerab |
| CVE-2021-1536 | 4.8 MEDIUM | Cisco Webex Meetings, Webex Network Recording Player, and Webex Teams DLL Injection Vulner |
| CVE-2021-1538 | 4.7 MEDIUM | Cisco Common Services Platform Collector Command Injection Vulnerability |
| CVE-2021-1525 | 4.7 MEDIUM | Cisco Webex Meetings and Webex Meetings Server File Redirect Vulnerability |
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V. Comments for CVE-2021-1527
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