Multiple vulnerabilities in Dell EMC NetWorker vProxy



Published: 2022-04-25 | Updated: 2022-12-22
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-0847
CVE-2022-0778
CWE-ID CWE-908
CWE-835
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Public exploit code for vulnerability #2 is available.
Vulnerable software
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Dell EMC NetWorker vProxy
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor Dell

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use of uninitialized resource

EUVDB-ID: #VU61110

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-0847

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of an uninitialized resources. A local user can overwrite arbitrary file in the page cache, even if the file is read-only, and execute arbitrary code on the system with elevated privileges.

The vulnerability was dubbed Dirty Pipe.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Dell EMC NetWorker vProxy: 4.3.0 - 4.3.0-17


CPE2.3 External links

http://www.dell.com/support/kbdoc/fr-fr/printview/000198849/10/en

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

2) Infinite loop

EUVDB-ID: #VU61391

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-0778

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the BN_mod_sqrt() function when processing an ASN.1 certificate that contains elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. A remote attacker can supply a specially crafted certificate to the TLS server or client, consume all available system resources and cause denial of service conditions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Dell EMC NetWorker vProxy: 4.3.0 - 4.3.0-17


CPE2.3 External links

http://www.dell.com/support/kbdoc/fr-fr/printview/000198849/10/en

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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