Multiple vulnerabilities in Nessus Network Monitor

1) OS Command Injection

EUVDB-ID: #VU62765

Risk: Medium

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-1292

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the c_rehash script distributed by some operating systems. A remote attacker with ability to pass data to c_rehash script can and execute arbitrary OS commands with the privileges of the script.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Nessus Network Monitor: 3.0.2 - 6.0.1

CPE2.3

• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.4:*:*:*:*:*:*:*

External links

https://www.tenable.com/security/tns-2022-19

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. However, proof of concept for this vulnerability is available.

2) OS Command Injection

EUVDB-ID: #VU64559

Risk: Medium

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2068

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the c_rehash script distributed by some operating systems. A remote attacker with ability to pass data to c_rehash script can and execute arbitrary OS commands with the privileges of the script.

The vulnerability exists due to incomplete fix for #VU62765 (CVE-2022-1292).

Mitigation

Install update from vendor's website.

Vulnerable software versions

Nessus Network Monitor: 3.0.2 - 6.0.1

CPE2.3

• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.4:*:*:*:*:*:*:*

External links

https://www.tenable.com/security/tns-2022-19

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.

3) Missing Encryption of Sensitive Data

EUVDB-ID: #VU64922

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-2097

CWE-ID: CWE-311 - Missing Encryption of Sensitive Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error in AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimized implementation. Under specific circumstances OpenSSL does not encrypt the entire message and can reveal sixteen bytes of data that was preexisting in the memory that wasn't written. A remote attacker can gain access to potentially sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Nessus Network Monitor: 3.0.2 - 6.0.1

CPE2.3

• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.4:*:*:*:*:*:*:*

External links

https://www.tenable.com/security/tns-2022-19

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.

4) Incorrect Regular Expression

EUVDB-ID: #VU65835

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-31129

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to improper validation of user-supplied input when parsing overly long strings. A remote attacker can pass a string that contains more that 10k characters and perform regular expression denial of service (ReDoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Nessus Network Monitor: 3.0.2 - 6.0.1

CPE2.3

• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:nessus_network_monitor:3.0.4:*:*:*:*:*:*:*

External links

https://www.tenable.com/security/tns-2022-19

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.