Month: September 2016
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Transaction spam attack: Next Steps
Today the network was attacked by a transaction spam attack that repeatedly called the EXTCODESIZE opcode (see trace sample here), thereby creating blocks that take up to ~20-60 seconds to validate due to the ~50,000 disk fetches needed to process the transaction. The result of this was a ~2-3x reduction in the rate of block…
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*The* most exhaustive list of known Bug Bounty Programs on the internet. via /r/netsec
*The* most exhaustive list of known Bug Bounty Programs on the internet. http://ift.tt/2dkcJtN Submitted September 22, 2016 at 04:41PM by ZephrX112 via reddit http://ift.tt/2cZrTmT
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Malware Evades Detection with Novel Technique
Malware Evades Detection with Novel Technique http://ift.tt/2dm7AE7 Researchers have found a new strain of document-based macro malware that evades discovery by lying dormant when it detects a security researcher’s test environment. The malware, according to researcher Caleb Fenton with security firm SentinelOne, evades detection simply by counting the number of documents – or the lack…
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The Ethereum network is currently undergoing a DoS attack
URGENT ALL MINERS: The network is under attack. The attack is a computational DDoS, ie. miners and nodes need to spend a very long time processing some blocks. This is due to the EXTCODESIZE opcode, which has a fairly low gasprice but which requires nodes to read state information from disk; the attack transactions are…
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All Public Leaks in One Place, With cracked hashes too! via /r/netsec
All Public Leaks in One Place, With cracked hashes too! http://ift.tt/2dmgdi9 Submitted September 22, 2016 at 02:53PM by ZephrX112 via reddit http://ift.tt/2cJwBHA
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I’m the creator of World of VNC. I just published a new scan (dated September 20th) via /r/netsec
I’m the creator of World of VNC. I just published a new scan (dated September 20th) https://worldofvnc.net Submitted September 22, 2016 at 03:13PM by worldofvnc via reddit http://ift.tt/2dc7HyZ
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Porting an exploit to a Netgear Router via /r/netsec
Porting an exploit to a Netgear Router http://ift.tt/2cTBnTU Submitted September 22, 2016 at 02:37PM by teesee23 via reddit http://ift.tt/2cwaRiO
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Yahoo is expected to confirm massive data breach, impacting hundreds of millions of users via /r/netsec
Yahoo is expected to confirm massive data breach, impacting hundreds of millions of users http://ift.tt/2db3mMj Submitted September 22, 2016 at 02:02PM by puysr17n via reddit http://ift.tt/2dbWSwM
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15 Vulnerable Sites To (Legally) Practice Your Hacking Skills via /r/netsec
15 Vulnerable Sites To (Legally) Practice Your Hacking Skills http://ift.tt/1DwLS17 Submitted September 22, 2016 at 12:06PM by asaphs via reddit http://ift.tt/2d26nBu
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OpenSSL preview issue by Akamai (maybe accidental early drop) via /r/netsec
OpenSSL preview issue by Akamai (maybe accidental early drop) http://ift.tt/2cnPywB Submitted September 22, 2016 at 09:47AM by asanso via reddit http://ift.tt/2cTzmFI
securityXspace 