Multiple vulnerabilities in IBM FlashSystem models 840 and 900
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2016-6816 CVE-2016-6817 CVE-2016-6796 |
| CWE-ID | CWE-200 CWE-20 CWE-119 CWE-264 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
FlashSystem 840 9840-AE1 & 9843-AE1 Other software / Other software solutions FlashSystem 900 9840-AE2 and 9843-AE2 Hardware solutions / Firmware |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Improper input validation
EUVDB-ID: #VU1184
Risk: Low
CVSSv4.0: 2.9 [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:P/U:Clear]
CVE-ID: CVE-2016-6816
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
Description
The vulnerability allows a remote attacker to manipulate HTTP responses.
The vulnerability exists due to incorrect parsing of HTTP requests. A remote attacker can send a specially crafted HTTP request containing specially crafted characters and perform XSS attacks, manipulate HTTP responses or obtain potentially sensitive data, belonging to other sessions.
Successful exploitation of the vulnerability may allow an attacker to gain access to potentially sensitive information, but requires presence of a proxy server, which does not block injected characters.
MitigationInstall update from vendor's website.
Vulnerable software versionsFlashSystem 840 9840-AE1 & 9843-AE1: All versions
FlashSystem 900 9840-AE2 and 9843-AE2: All versions
CPE2.3- cpe:2.3:a:ibm_corporation:flashsystem_840_9840-ae1_and_9843-ae1:*:*:*:*:*:*:*:*
- cpe:2.3:h:ibm_corporation:flashsystem_900_9840-ae2_and_9843-ae2:*:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/697159
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) Denial of service
EUVDB-ID: #VU1185
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-2016-6817
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
Description
The vulnerability allows a remote attacker to perform a DoS attack.
The vulnerability exists due to boundary error when parsing HTTP/2 headers. A remote attacker can send a specially crafted HTTP/2 header longer than available buffer and trigger infinite loop.
Successful exploitation of the vulnerability may result in denial of service.
MitigationInstall update from vendor's website.
Vulnerable software versionsFlashSystem 840 9840-AE1 & 9843-AE1: All versions
FlashSystem 900 9840-AE2 and 9843-AE2: All versions
CPE2.3- cpe:2.3:a:ibm_corporation:flashsystem_840_9840-ae1_and_9843-ae1:*:*:*:*:*:*:*:*
- cpe:2.3:h:ibm_corporation:flashsystem_900_9840-ae2_and_9843-ae2:*:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/697159
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) Security restrictions bypass
EUVDB-ID: #VU1092
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-2016-6796
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows an application to bypass security manager restrictions on the target system.
The weakness improper access control. By modifying of configuration parameters for the JSP Servlet, a malicious application can bypass a configured SecurityManager.
Successful exploitation of the vulnerability results in security bypass.
Install update from vendor's website.
Vulnerable software versionsFlashSystem 840 9840-AE1 & 9843-AE1: All versions
FlashSystem 900 9840-AE2 and 9843-AE2: All versions
CPE2.3- cpe:2.3:a:ibm_corporation:flashsystem_840_9840-ae1_and_9843-ae1:*:*:*:*:*:*:*:*
- cpe:2.3:h:ibm_corporation:flashsystem_900_9840-ae2_and_9843-ae2:*:*:*:*:*:*:*:*
https://www.ibm.com/support/pages/node/697159
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.
