Multiple vulnerabilities in Redis
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-12326 CVE-2018-12453 |
| CWE-ID | CWE-120 CWE-704 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
Redis Server applications / Database software |
| Vendor | Salvatore Sanfilippo |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU13401
Risk: Low
CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-12326
CWE-ID:
CWE-120 - Buffer overflow
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to a buffer overflow condition in the redis-clicomponent. A local attacker can execute a specially crafted command that submits malicious input, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate to version 4.0.10, 5.0 RC3.
Vulnerable software versionsRedis: 4.0.0 - 5.0
External linkshttp://raw.githubusercontent.com/antirez/redis/4.0/00-RELEASENOTES
http://raw.githubusercontent.com/antirez/redis/5.0/00-RELEASENOTES
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
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.
The attacker would have to login to the system and perform certain actions 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.
2) Type confusion
EUVDB-ID: #VU13402
Risk: Low
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2018-12453
CWE-ID:
CWE-704 - Type conversion
Exploit availability: Yes
DescriptionThe vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The vulnerability exists in the xgroupCommand function due to improper handling of an XGROUP command where the key is not a stream by the xgroupCommand function, as defined in the t_stream.c source code file. A remote attacker can execute an XGROUP command that submits malicious input, trigger a type confusion condition and cause the service to crash.
MitigationInstall update from vendor's website.
Vulnerable software versionsRedis: 4.0.0 - 4.0.10
External linkshttp://github.com/antirez/redis/commit/c04082cf138f1f51cedf05ee9ad36fb6763cafc6
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user 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.
