Hackers are taking over high-profile Instagram users’ accounts and holding them to ransom, it was revealed this week. At least four influencers have lost control of their accounts and received demands to send bitcoin for their return, but in some cases the attackers retained control or deleted the accounts.. Motherboard reported that Los Angeles-based fitness Instagram influencer, Kevin Kreider, lost control of his Instagram account and more than 100,000 followers after falling victim to a phishing scam. The account hijackers sent him a fraudulent email offering a sponsorship deal with French Connection that took him to a fake Instagram portal which then stole his account details. The link for this article located at Naked Security/Sophos is no longer available. . Leading Instagram personalities face ransom threats following account breaches. Uncover the deceptive strategies employed by cybercriminals.. Instagram Account Hijacking, Ransomware Threats, Phishing Scams, Social Media Security, Influencer Accounts. . LinuxSecurity.com Team
Hackers behind a recently detected email attack campaign are exploiting a vulnerability in a Yahoo website to hijack the email accounts of Yahoo users and use them for spam, according to security researchers from antivirus vendor Bitdefender.. The attack begins with users receiving a spam email with their name in the subject line and a short "check out this page" message followed by a bit.ly shortened link. Clicking on the link takes users to a website masquerading as the MSNBC news site that contains an article about how to make money while working from home, the Bitdefender researchers said Wednesday in a blog post. The link for this article located at Network World is no longer available. . The attack begins with users receiving a spam email with their name in the subject line and a short . hackers, behind, recently, detected, email, attack, campaign, exploiting, vulnerability, yahoo. . LinuxSecurity.com Team
AN INDEPENDENT insecurity researcher says there are multiple security vulnerabilities in the business social network Linkedin, due to the way it handles and transmits cookies over SSL.. In a blog post, Rishi Narang claimed that a worst case scenario would see a hacker capturing your web browsing cookies in traffic and hijacking your account. Cookies are snippets of text that are sent to your web browser and retained in disk files, and they are used to do things like retain your account numbers, personalise information and help with services like Amazon. He said that even if you change the password and all settings, the old cookie will be valid and will grant the attacker access to your account. One of the problems is the availability of cookies sent in plain text over unencrypted channels of communication, posted Narang. He said this is due to SSL cookies not having a secure flag set, as well as appearing to contain session tokens. The link for this article located at The Inquirer is no longer available. . Cybercriminals may gain access to your profile by exploiting session cookies resulting from flawed SSL configurations on Twitter. Identify the security gaps immediately.. LinkedIn Cookies Security, SSL Vulnerabilities, Account Hijacking. . LinuxSecurity.com Team
To exploit this vulnerability one must create an account into the target site, base64_decode his cookie,modify the username in the cookie to inject SQL,base64_encode his cookie and pass it with save=1 to article.php (which must be done throught modules.php). . .. To exploit this vulnerability one must create an account into the target site, base64_decode his cookie,modify the username in the cookie to inject SQL,base64_encode his cookie and pass it with save=1 to article.php (which must be done throught modules.php) Date: Sun, 17 Mar 2002 23:56:57 +0800 From: Handle Nopman To: bugtraq@ Subject: PHP-Nuke & Post-Nuke account hijacking. Hi all BugTraq readers! I've found a bug in PHP-Nuke and Post-Nuke that allows one to hijack other accounts. Code in modules/News/article.php: if ($save AND is_user($user)) { cookiedecode($user); sql_query("update ".$user_prefix."_users set umode='$mode', uorder='$order', thold='$thold' where uid='$cookie[0]'", $dbi); getusrinfo($user); $info = base64_encode("$userinfo[uid]:$userinfo[uname]:$userinfo[pass]: $userinfo[storynum]:$userinfo[umode]:$userinfo[uorder]:$userinfo[thold]: $userinfo[noscore]"); setcookie("user","$info",time()+$cookieusrtime); } This code snippet cheks if user is logged in and allows he to change his mode,order and thold, then the code sends the cookie back with modified data. There is a bug. Code checks if user is logged in by is_user, but it uses getusrinfo to send the data back. Function is_user verifies the cookie by checking that UID and password match, but getusrinfo gets the data by using USERNAME and password and the getusrinfo uses insecure SQL call. So by specifying valid UID and PASSWORD combination one can get round the is_user check and his username is passed without any verification to insecure SQL call. By specifying specially crafted username one can fool the SQL call to return another users data. To exploit this vulnerability one must create an account into the target site, base64_decode his cookie,modify the username in the cookie toinject SQL,base64_encode his cookie and pass it with save=1 to article.php (which must be done throught modules.php) Post-Nuke is vulnerable to this too. Vendor Status I contacted Francisco Burzi over 2 weeks ago and he did not reply. I delayed the relase because I found out that Post-Nuke has this bug too. I contacted authors of Post-Nuke and they replyed almost immediatly and a fixed version is now available. Post-Nuke users should upgrade to the most recent version. Best Regards, "NopMan" -- Powered by Outblaze . To exploit this vulnerability one must create an account into the target site, base64_decode his coo. exploit, vulnerability, create, account, target, base64_decode. . LinuxSecurity.com Team
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