Remote code execution in AVEVA Wonderware License Server
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2015-8277 |
| CWE-ID | N/A |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Wonderware License Server Server applications / SCADA systems |
| Vendor | AVEVA Software, LLC. |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU12590
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2015-8277
CWE-ID: N/A
Exploit availability: Yes
DescriptionThe vulnerability allows a remote unauthenticated attacker to execute arbitrary code on the target system.
The weakness exists in the custom string copying function of the license server manager due to improper bounds checking on incoming data. A remote attacker can send specially crafted packet with opcode (a) 0x107 or (b) 0x10a, trigger memory corruption and execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
MitigationInstall update from vendor's website.
Vulnerable software versionsWonderware License Server: All versions
External linkshttp://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec129.pdf
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. However, proof of concept for this vulnerability is available.
