Information Exposure Affecting com.squareup.okhttp3:okhttp package, versions [,4.9.2)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Jul 2022
- disclosed22 Jul 2022
- crediteli-darkly
Introduced: 22 Jul 2022
CVE-2023-0833 (opens in a new tab)How to fix?
Upgrade com.squareup.okhttp3:okhttp to version 4.9.2 or higher.
Overview
com.squareup.okhttp3:okhttp is a HTTP & HTTP/2 client for Android and Java applications
Affected versions of this package are vulnerable to Information Exposure. When there's an illegal character in a header value, an IllegalArgumentException is thrown whose message includes the full header value.
PoC
package com.launchdarkly.eventsource;
import okhttp3.*;
import org.junit.Test;
import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;
public class OkhttpHeaderExceptionTest {
@Test
public void invalidHeaderValueIsCapturedInException() throws Exception {
String password = "very-secret-password";
String badValue = password + "\n";
try {
Request req = new Request.Builder().url("http://github.com/path/doesnt/matter")
.header("Authorization", badValue)
.build();
} catch (IllegalArgumentException e) {
assertThat(e.getMessage(), not(containsString(password)));
}
}
}