Multiple vulnerabilities in IBM ProtecTIER

1) Information disclosure

EUVDB-ID: #VU1914

Risk: Medium

CVSSv4.0: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

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

CPE2.3

• cpe:2.3:a:ibm_corporation:protectier_entry_edition_pid_5639-ptc_-_ts7610_ts7620:*:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:protectier_gateway_for_system_z_pid_5639-fpa:*:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:protectier_appliance_edition_pid_5639-ptb_-_ts7650ap1:*:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:protectier_enterprise_edition_pid_5639-pta_-_ts7650g:*:*:*:*:*:*:*:*

External links

https://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

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-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

CPE2.3

• cpe:2.3:a:ibm_corporation:protectier_entry_edition_pid_5639-ptc_-_ts7610_ts7620:*:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:protectier_gateway_for_system_z_pid_5639-fpa:*:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:protectier_appliance_edition_pid_5639-ptb_-_ts7650ap1:*:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:protectier_enterprise_edition_pid_5639-pta_-_ts7650g:*:*:*:*:*:*:*:*

External links

https://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.