Multiple vulnerabilities in Synology DiskStation Manager
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2016-6489 |
| CWE-ID | CWE-200 CWE-79 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
DiskStation Manager (DSM) Server applications / File servers (FTP/HTTP) |
| Vendor | Synology Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
The discovered vulnerabilities allow a remote attacker to perform XSS attacks and gain access to potentially sensitive information.
1) Man-in-the-Middle attack
EUVDB-ID: #VU332
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-6489
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a MitM attack.
The vulnerability exists due to an error in nettle-RSA code, which can be used in cache-sharing channel attacks. A remote attacker can create specially crafted RSA or DSA data and perform Man-in-the-Middle (MitM) attack.
Successful exploitation of this vulnerability will allow an attacker to gain access to potentially sensitive information.
MitigationUpdate to version 6.0.2-8451
Vulnerable software versionsDiskStation Manager (DSM): 6.0 - 6.0.1
External linkshttp://eprint.iacr.org/2016/596.pdf
http://git.lysator.liu.se/nettle/nettle/commit/3fe1d6549765ecfb24f0b80b2ed086fdc818bff3
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Cross-site scripting
EUVDB-ID: #VU331
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe vulnerability can be used by a remote attacker to perform cross-site scripting attacks.
The vulnerability exists due to insufficient sanitization of user-supplied input. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user’s browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationUpdate to version 6.0.2-8451
Vulnerable software versionsDiskStation Manager (DSM): 6.0 - 6.0.1
External linkshttp://www.synology.com/en-global/releaseNote/DS115
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
