Multiple vulnerabilities in IBM i



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2016-2183
CVE-2016-6329
CWE-ID CWE-327
CWE-284
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 IBM i
Operating systems & Components / Operating system

Vendor IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU370

Risk: Low

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2016-2183

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to decrypt transmitted data.

The vulnerability exists due to remote user's ability to control the network and capture long duration 3DES CBC mode encrypted session during which he can see a part of the text. In case of repeated sending the attacker can read the part and reconstruct the whole text.

Successful exploitation of this vulnerability may allow a remote attacker to decode transmitted data. This vulnerability is known as SWEET32.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM i: 6.1 - 7.3

CPE2.3 External links

https://www.ibm.com/support/pages/node/667629


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) Access control error

EUVDB-ID: #VU380

Risk: Low

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

CVE-ID: CVE-2016-6329

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows attackers to gain access to potentially sensitive information.

The vulnerability exists due to capturing of long duration Blowfish CBC mode encrypted TLS session. Repeated sending of communication protocol with parts of the plaintext helps attackers to reconstruct the secret information.

Successful exploitation of this vulnerability may allow a remote attacker to access potentially sensitive data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM i: 6.1 - 7.3

CPE2.3 External links

https://www.ibm.com/support/pages/node/667629


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.



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