Multiple vulnerabilities in IBM ProtecTIER



Published: 2016-04-24 | Updated: 2023-09-19
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2016-0800
CVE-2016-0797
CWE-ID CWE-327
CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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ProtecTIER Entry Edition (PID 5639-PTC) - TS7610 / TS7620
Server applications / Other server solutions

ProtecTIER Gateway for System Z (PID 5639-FPA)
Server applications / Other server solutions

ProtecTIER Appliance Edition (PID 5639-PTB) - TS7650AP1
Server applications / Other server solutions

ProtecTIER Enterprise Edition (PID 5639-PTA) - TS7650G
Server applications / Other server solutions

Vendor IBM Corporation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU1914

Risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2016-0800

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

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to decrypt sensitive information.

The vulnerability exists due to usage of weak SSLv2 protocol, which requires to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data. A remote attacker can decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle.

The vulnerability is dubbed "DROWN" attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ProtecTIER Entry Edition (PID 5639-PTC) - TS7610 / TS7620: All versions

ProtecTIER Gateway for System Z (PID 5639-FPA): All versions

ProtecTIER Appliance Edition (PID 5639-PTB) - TS7650AP1: All versions

ProtecTIER Enterprise Edition (PID 5639-PTA) - TS7650G: All versions

External links

http://www.ibm.com/support/pages/node/691201


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, a fully functional exploit for this vulnerability is available.

2) Input validation error

EUVDB-ID: #VU32244

Risk: Medium

CVSSv3.1: 6.5 [AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-0797

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (heap memory corruption or NULL pointer dereference) or possibly have unspecified other impact via a long digit string that is mishandled by the (1) BN_dec2bn or (2) BN_hex2bn function, related to crypto/bn/bn.h and crypto/bn/bn_print.c.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ProtecTIER Entry Edition (PID 5639-PTC) - TS7610 / TS7620: All versions

ProtecTIER Gateway for System Z (PID 5639-FPA): All versions

ProtecTIER Appliance Edition (PID 5639-PTB) - TS7650AP1: All versions

ProtecTIER Enterprise Edition (PID 5639-PTA) - TS7650G: All versions

External links

http://www.ibm.com/support/pages/node/691201


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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