Multiple vulnerabilities in PostgreSQL
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-23214 CVE-2021-23222 |
| CWE-ID | CWE-311 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
PostgreSQL Server applications / Database software |
| Vendor | PostgreSQL Global Development Group |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Missing Encryption of Sensitive Data
EUVDB-ID: #VU58113
Risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-23214
CWE-ID:
CWE-311 - Missing Encryption of Sensitive Data
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to the way PostgreSQL handles encrypted connections. When the server is configured to use trust authentication with a clientcert requirement or to use cert
authentication, a man-in-the-middle attacker can inject arbitrary SQL
queries when a connection is first established, despite the use of SSL
certificate verification and encryption.
Install updates from vendor's website.
Vulnerable software versionsPostgreSQL: 9.6.0 - 14.0
External linkshttp://www.postgresql.org/about/news/postgresql-141-135-129-1114-1019-and-9624-released-2349/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
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) Missing Encryption of Sensitive Data
EUVDB-ID: #VU58114
Risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-23222
CWE-ID:
CWE-311 - Missing Encryption of Sensitive Data
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to the way the libpq process in PostgreSQL handles encrypted connections. A man-in-the-middle attacker can inject false responses to the client's first few queries, despite the use of SSL certificate verification and encryption. The attacker can exfiltrate the client's password or other confidential data that might be transmitted early in a session.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPostgreSQL: 9.6.0 - 14.0
External linkshttp://www.postgresql.org/about/news/postgresql-141-135-129-1114-1019-and-9624-released-2349/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
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.
