PT-2021-5082 · Vmware · Vsphere Web Client+1

Ch0Wn · Published 2021-11-23 · Updated 2026-01-13 · CVE-2021-21980

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions vSphere Web Client (FLEX/Flash) (affected versions not specified)

Description The vSphere Web Client contains an unauthorized arbitrary file read issue. A malicious actor with network access to port 443 on vCenter Server may exploit this to gain access to sensitive information by sending a specially crafted HTTP request. This issue may allow an attacker to read arbitrary files, potentially leading to unauthorized access to protected information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

BDU:2021-05863

CVE-2021-21980

Affected Products

Vmware Vcenter

Vsphere Web Client

References · 14

• 🔥 https://github.com/Osyanina/westone-CVE-2021-21980-scanner · Exploit
• https://bdu.fstec.ru/vul/2021-05863 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21980 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21980 · Security Note
• https://vmware.com/security/advisories/VMSA-2021-0027.html · Vendor Advisory
• https://t.me/sysadm_in_channel/3588 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021112316 · Note
• https://t.me/nekaspersky/1477 · Telegram Post
• https://vmware.com/security/advisories/VMSA-2021-0027.htm · Note
• https://t.me/thehackernews/1679 · Telegram Post
• https://t.me/true_secator/2371 · Telegram Post
• https://t.me/cvenotify/23961 · Telegram Post
• https://t.me/isacarusec/4742 · Telegram Post
• https://t.me/cibsecurity/32968 · Telegram Post