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Two Estonian nationals plead guilty to a $577M cryptocurrency Ponzi scheme through HashFlare, defrauding hundreds of thousands globally.…

A list of topics we covered in the week of February 10 to February 16 of 2025

The US Cybersecurity and Infrastructure Security Agency has frozen efforts to aid states in securing elections, according to an internal memo viewed by WIRED.

A phishing attack dubbed DEEP#DRIVE is targeting South Korean entities, with thousands already affected. North Korean hackers from…

The North Korean threat actor known as the Lazarus Group has been linked to a previously undocumented JavaScript implant named Marstech1 as part of limited targeted attacks against developers. The active operation has been dubbed Marstech Mayhem by SecurityScorecard, with the malware delivered by means of an open-source repository hosted on GitHub that's associated with a profile named "

A cybercriminal stole a reported 12 million data records on Zacks’ customers and clients.

### Summary The regular expression `/<([^>]+)>; rel="deprecation"/` used to match the `link` header in HTTP responses is vulnerable to a ReDoS (Regular Expression Denial of Service) attack. This vulnerability arises due to the unbounded nature of the regex's matching behavior, which can lead to catastrophic backtracking when processing specially crafted input. An attacker could exploit this flaw by sending a malicious `link` header, resulting in excessive CPU usage and potentially causing the server to become unresponsive, impacting service availability. ### Details The vulnerability resides in the regular expression `/<([^>]+)>; rel="deprecation"/`, which is used to match the `link` header in HTTP responses. This regular expression captures content between angle brackets (`<>`) followed by `; rel="deprecation"`. However, the pattern is vulnerable to ReDoS (Regular Expression Denial of Service) attacks due to its susceptibility to catastrophic backtracking when processing malicious inp...

### Summary A Regular Expression Denial of Service (ReDoS) vulnerability exists in the processing of HTTP request headers. By sending an authorization header containing an excessively long sequence of spaces followed by a newline and "@", an attacker can exploit inefficient regular expression processing, leading to excessive resource consumption. This can significantly degrade server performance or cause a denial-of-service (DoS) condition, impacting availability. ### Details The issue occurs at [line 52](https://github.com/octokit/request-error.js/blob/main/src/index.ts) of iterator.ts in the @octokit/request-error repository. The vulnerability is caused by the use of an inefficient regular expression in the handling of the `authorization` header within the request processing logic: ```js authorization: options.request.headers.authorization.replace( / .*$/, " [REDACTED]" ) ``` The regular expression `/ .*$/` matches a space followed by any number of characters until the end of th...

### Summary For the npm package `@octokit/plugin-paginate-rest`, when calling `octokit.paginate.iterator()`, a specially crafted `octokit` instance—particularly with a malicious `link` parameter in the `headers` section of the `request`—can trigger a ReDoS attack. ### Details The issue occurs at [line 39](https://github.com/octokit/plugin-paginate-rest.js/blob/main/src/iterator.ts) of iterator.ts in the @octokit/plugin-paginate-rest repository. The relevant code is as follows: ```js url = ((normalizedResponse.headers.link || "").match( /<([^>]+)>;\s*rel="next"/, ) || [])[1]; ``` The regular expression `/<([^>]+)>;\s*rel="next"/` may lead to a potential backtracking vulnerability, resulting in a ReDoS (Regular Expression Denial of Service) attack. This could cause high CPU utilization and even service slowdowns or freezes when processing specially crafted `Link` headers. ### PoC [The gist of PoC.js](https://gist.github.com/ShiyuBanzhou/d3f2ad000be8384d2105c87c2ed7ce7d) 1. run npm i ...

### Summary By crafting specific `options` parameters, the `endpoint.parse(options)` call can be triggered, leading to a regular expression denial-of-service (ReDoS) attack. This causes the program to hang and results in high CPU utilization. ### Details The issue occurs in the `parse` function within the `parse.ts` file of the npm package `@octokit/endpoint`. The specific code is located at the following link: https://github.com/octokit/endpoint.js/blob/main/src/parse.ts, at line 62: ```ts headers.accept.match(/[\w-]+(?=-preview)/g) || ([] as string[]); ``` The regular expression `/[\w-]+(?=-preview)/g` encounters a backtracking issue when it processes `a large number of characters` followed by the `-` symbol. e.g., the attack string: ```js "" + "A".repeat(100000) + "-" ``` ### PoC [The gist](https://gist.github.com/ShiyuBanzhou/a17202ac1ad403a80ca302466d5e56c4) Here is the reproduction process for the vulnerability: 1. run 'npm i @octokit/endpoint' 2. Move `poc.js` to the root dir...