Use of insufficiently random values in Samba



Published: 2022-09-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-1615
CWE-ID CWE-330
Exploitation vector Local network
Public exploit N/A
Vulnerable software
Subscribe 		Samba
Server applications / Directory software, identity management

Vendor Samba

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use of insufficiently random values

EUVDB-ID: #VU67270

Risk: Low

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

CVE-ID: CVE-2022-1615

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to usage of predictable random values within the GnuTLS gnutls_rnd() function. A remote user can decrypt sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Samba: 4.1.0 - 4.16.4

External links

http://bugzilla.samba.org/show_bug.cgi?id=15103
http://gitlab.com/samba-team/samba/-/merge_requests/2644


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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