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GHSA-m7wr-2xf7-cm9p
No affected components available
Impact
SQL injection can occur when all of the following conditions are met:
- The non-default simple protocol is used.
- A placeholder for a numeric value must be immediately preceded by a minus.
- There must be a second placeholder for a string value after the first placeholder; both must be on the same line.
- Both parameter values must be user-controlled.
e.g.
Simple mode must be enabled:
// connection string includes "prefer_simple_protocol=true"
// or
// directly enabled in code
config.ConnConfig.PreferSimpleProtocol = true
Parameterized query:
SELECT * FROM example WHERE result=-$1 OR name=$2;
Parameter values:
$1 => -42
$2 => "foo\n 1 AND 1=0 UNION SELECT * FROM secrets; --"
Resulting query after preparation:
SELECT * FROM example WHERE result=--42 OR name= 'foo
1 AND 1=0 UNION SELECT * FROM secrets; --';
Patches
The problem is resolved in v4.18.2.
Workarounds
Do not use the simple protocol or do not place a minus directly before a placeholder.
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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