Multiple vulnerabilities in IBM Security Network Protection



Published: 2018-06-08 | Updated: 2018-06-08
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2018-1426
CVE-2018-1427
CVE-2018-1428
CVE-2018-1447
CWE-ID CWE-338
CWE-190
CWE-327
CWE-521
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Security Network Protection
Web applications / Other software

Vendor IBM Corporation

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Use of cryptographically weak PRNG

EUVDB-ID: #VU12311

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1426

CWE-ID: CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information and write arbitrary files on the target system.

The weakness exists due to IBM GSKit duplicates the PRNG state across fork() system calls when multiple ICC instances are loaded which can result in duplicate Session IDs and a risk of duplicate key material. A remote attacker can gain access to potentially sensitive information and write arbitrary files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Security Network Protection: 5.3.1 - 5.3.3

External links

http://www-01.ibm.com/support/docview.wss?uid=swg22016549


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) Integer overflow

EUVDB-ID: #VU12310

Risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1427

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local unauthenticated attacker to cause DoS condition on the target system.

The weakness exists due to IBM GSKit contains several environment variables. A local attacker can cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Security Network Protection: 5.3.1 - 5.3.3

External links

http://www-01.ibm.com/support/docview.wss?uid=swg22016549


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

3) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU12309

Risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1428

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

The vulnerability allows a local unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists due to IBM GSKit uses weaker than expected cryptographic algorithms. A local attacker can gain access to potentially sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Security Network Protection: 5.3.1 - 5.3.3

External links

http://www-01.ibm.com/support/docview.wss?uid=swg22016549


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

4) Weak passwords requirements

EUVDB-ID: #VU12308

Risk: Low

CVSSv3.1: 4.5 [CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1447

CWE-ID: CWE-521 - Weak Password Requirements

Exploit availability: No

Description

The vulnerability allows a local unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists due to the GSKit CMS KDB logic fails to salt the hash function resulting in weaker than expected protection of passwords. A weak password may be recovered. A local attacker can gain access to potentially sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Security Network Protection: 5.3.1 - 5.3.3

External links

http://www-01.ibm.com/support/docview.wss?uid=swg22016549


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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