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GHSA-h452-7996-h45h
No affected components available
Versions of the package cookiejar before 2.1.4 are vulnerable to Regular Expression Denial of Service (ReDoS) via the Cookie.parse function and other aspects of the API, which use an insecure regular expression for parsing cookie values. Applications could be stalled for extended periods of time if untrusted input is passed to cookie values or attempted to parse from request headers.
Proof of concept:
ts\nconst { CookieJar } = require("cookiejar");
const jar = new CookieJar();
const start = performance.now();
const attack = "a" + "t".repeat(50_000);
jar.setCookie(attack);
console.log(`CookieJar.setCookie(): ${performance.now() - start}ms`);
CookieJar.setCookie(): 2963.214399999939ms
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. 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 low impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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