Multiple vulnerabilities in VMware vCenter Server



Published: 2021-11-23
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-21980
CVE-2021-22049
CWE-ID CWE-22
CWE-918
Exploitation vector Network
Public exploit N/A
Vulnerable software
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vCenter Server
Server applications / Virtualization software

Vendor VMware, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Path traversal

EUVDB-ID: #VU58329

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21980

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

vCenter Server: 6.5, 6.5 U1, 6.5 U3, 6.5 U3a, 6.5 U3b, 6.5 U3c, 6.5 U3d, 6.5 U3e, 6.5 U3f, 6.5 U3g, 6.5 U3h, 6.5 U3i, 6.5 U3j, 6.5 U3k, 6.5 U3l, 6.5 U3m, 6.5 U3n, 6.5 U3o, 6.5 U3p, 6.5 U3q, 6.5.0, 6.5.0a, 6.5.0b, 6.5.0c, 6.5.0d, 6.5u2c, 6.7, 6.7 U3, 6.7 U3a, 6.7 U3b, 6.7 U3c, 6.7 U3d, 6.7 U3e, 6.7 U3f, 6.7 U3g, 6.7 U3h, 6.7 U3i, 6.7 U3k, 6.7 U3l, 6.7 U3m, 6.7 U3n, 6.7 U3o, 6.7.0, 6.7.0d

CPE2.3 External links

http://www.vmware.com/security/advisories/VMSA-2021-0027.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Server-Side Request Forgery (SSRF)

EUVDB-ID: #VU58330

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22049

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

vCenter Server: 6.5, 6.5 U1, 6.5 U3, 6.5 U3a, 6.5 U3b, 6.5 U3c, 6.5 U3d, 6.5 U3e, 6.5 U3f, 6.5 U3g, 6.5 U3h, 6.5 U3i, 6.5 U3j, 6.5 U3k, 6.5 U3l, 6.5 U3m, 6.5 U3n, 6.5 U3o, 6.5 U3p, 6.5 U3q, 6.5.0, 6.5.0a, 6.5.0b, 6.5.0c, 6.5.0d, 6.5u2c, 6.7, 6.7 U3, 6.7 U3a, 6.7 U3b, 6.7 U3c, 6.7 U3d, 6.7 U3e, 6.7 U3f, 6.7 U3g, 6.7 U3h, 6.7 U3i, 6.7 U3k, 6.7 U3l, 6.7 U3m, 6.7 U3n, 6.7 U3o, 6.7.0, 6.7.0d

CPE2.3 External links

http://www.vmware.com/security/advisories/VMSA-2021-0027.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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