Advisories & Alerts

  • [SingCERT] Alert on HP Notebook Keylogger 12 December 2017

    A keylogger*-type feature was found in the Synaptics touchpad driver installed in several HP notebook models. Although this feature is disabled by default, an attacker with local administrative rights could still obtain the keystrokes by modifying the system to enable the keylogger feature on an affected notebook.

    *A keylogger is a type of surveillance technology used to monitor and record each keystroke typed on a specific computer’s keyboard.

  • [SingCERT] Alert on Microsoft Malware Protection Engine Critical Vulnerability (CVE-2017-11937) 10 December 2017

    On 8 December 2017, Microsoft announced a critical remote code execution (RCE) vulnerability existing in the Microsoft Malware Protection Engine, which allows an attacker to take full control of an affected system.

  • [SingCERT] Securing Your Mobile Devices When Travelling This Holiday Season 08 December 2017

    As the year comes to a close, we would like to remind all who are travelling during this holiday season to remain vigilant of potential cyber threats and practise good cyber hygiene when using smart mobile devices. SingCERT recommends the following steps to prevent yourself from becoming a cyber-victim.

  • [SingCERT] Alert on Mailsploit to Spoof Email Addresses 07 December 2017

    On 5 December 2017, a security researcher disclosed a set of vulnerabilities dubbed "Mailsploit" which allowed hackers to send a well-crafted spoofed email. The exploit allows non-standard characters to be encoded into emails to trick recipients into believing they have received the email from a specific individual.

  • [SingCERT] Alert on Security Flaw Found in macOS High Sierra 30 November 2017

    macOS High Sierra is the latest release of Mac operating system by Apple Inc. for its brand of computers.

    On 28 November 2017, a software developer discovered a security bug in macOS High Sierra. This bug allows anyone with access to Mac computers to log into the “root” account without keying in a password.

  • [SingCERT] Advisory on Exim Internet Mailer Vulnerabilities 30 November 2017

    Exim is a popular internet mail message transfer agent that is widely used by Unix-like operating systems.

    Two critical vulnerabilities (CVE-2017-16943 and CVE-2017-16944) have been discovered and publicly disclosed on 26 November 2017. These vulnerabilities could allow an attacker to execute malicious codes remotely on the affected systems.

    CVE-2017-16943 is a use-after-free bug that affects Exim's feature which allows the breaking and sending of emails in multiple chunks.

    CVE-2017-16944 is a denial of service (DoS) flaw caused by the improper checking for a '.' character to signify the end of an email when parsing the data header. This vulnerability is also exploitable via the chunking feature.

  • [SingCERT] Alert on Microsoft Office Memory Corruption Vulnerability (CVE-2017-11882) 24 November 2017

    On 14th November 2017, Microsoft reported a remote code execution vulnerability in Microsoft Office software when the software fails to properly handle data in memory.

  • [SingCERT] Advisory on Intel Firmware Vulnerabilities 23 November 2017

    Intel manufactures processors that reside in computers and other devices. These processors execute instructions which will then perform specific actions.

    On 20th November 2017, Intel announced security vulnerabilities (CVE-2017-5705 to CVE-2017-5712) in Intel Core processors manufactured from 2015 onwards. These vulnerabilities could lead to remote code execution (RCE) on certain PCs, servers, and Internet-of-Things (IoT) platforms.

  • [SingCERT] Alert on Online Shopping During Festive Season 23 November 2017

    SingCERT advises members of the public who intend to shop online during the festive holiday season to be aware of possible online scams.

  • [SingCERT] Alert on Browser-based Digital Currency Mining 09 November 2017

    SingCERT has seen an increase in digital mining tools embedded in websites to secretly mine digital currency. These websites expend the user's Central Processing Unit (CPU) power without their permission.

    Digital Currency is a form of currency that exists only in digital form, unlike traditional physical currency such as banknotes and coins. Digital currency is digitally created, held and transacted electronically through transfers of value on computer networks. Digital currencies are generated by mining software that run on computer systems on the internet, making use of the computational power of the hardware Central Processing Unit (CPU) and Graphics Processing Unit (GPU). Bitcoin, Monero and Ethereum are examples of digital currencies that make use of hardware computational power for digital mining.