Denial of service in Dell RSA BSAFE Micro Edition Suite

1) Improper input validation

EUVDB-ID: #VU15916

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-15769

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition.

The vulnerability exists due to improper management of keys when an Ephemeral or Anonymous Diffie-Hellman (DHE or ADH) cipher suite is used A remote attacker with access to a Transport Layer Security (TLS) server can send a very large prime value to a targeted TLS client and cause the service to crash.

Mitigation

The vulnerability has been fixed in the version 4.0.11, 4.1.6.2.

Vulnerable software versions

RSA BSAFE Micro Edition Suite: 4.0.0 - 4.1.6

CPE2.3

• cpe:2.3:a:dell:rsa_bsafe_micro_edition_suite:4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:dell:rsa_bsafe_micro_edition_suite:4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:dell:rsa_bsafe_micro_edition_suite:4.0.2:*:*:*:*:*:*:*

External links

https://seclists.org/fulldisclosure/2018/Nov/37

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.