Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Attacks/Breaches

Hacker Steals Data on 18M Auction Customers in South Korea

Chinese attacker asks for ransom on data, reports say

South Korea’s largest online shopping site earlier this month was attacked by a Chinese hacker who made off with the user information on 18 million members and a large amount of financial data.

According to reports on Hack in the Box and the Web Application Security Consortium Incident Report, Auction.co.kr has disclosed the theft of data from some 18 million buyers and sellers.

The attack was launched from China's internet. After the incident, Auction.co.kr received a phone call offering to exchange the user information for money, the reports said.

According to a report on Dark Visitor, a security blog site, the Chinese hacker did not directly attack the server. The hacker sent out bulk emailings to the auction staff containing “hacker procedures" that may have contained malware. When the staff members confirmed the emails, the hacker was able to gain their IDs. The hacker was then able to log into the Auction server using the staffer’s ID.

The WASC report categorizes the exploit as a cross-site request forgery attack. "The attack description is vague, but can be best described as session hijacking," the organization said.

Auction.co.kr waited 20 hours after the attack before confirming the loss of information, according to the Chinese site Hackbase.com. Korean users rebuked the Website for being too slow to act, the reports said.

The incident occurred around Feb. 12, but it has gone largely unreported. "In the U.S. this would be front news," the WASC report said. "We don't know if it was front news in Korea, but it did not get to the international media." Most of the reports on the incident have been in Korean, which make it difficult for English speaking researchers and media to report it, WASC observed.

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message.

Tim Wilson is Editor in Chief and co-founder of Dark Reading.com, UBM Tech's online community for information security professionals. He is responsible for managing the site, assigning and editing content, and writing breaking news stories. Wilson has been recognized as one ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Oldest First  |  Newest First  |  Threaded View
Edge-DRsplash-10-edge-articles
7 Old IT Things Every New InfoSec Pro Should Know
Joan Goodchild, Staff Editor,  4/20/2021
News
Cloud-Native Businesses Struggle With Security
Robert Lemos, Contributing Writer,  5/6/2021
Commentary
Defending Against Web Scraping Attacks
Rob Simon, Principal Security Consultant at TrustedSec,  5/7/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
How Enterprises are Developing Secure Applications
How Enterprises are Developing Secure Applications
Recent breaches of third-party apps are driving many organizations to think harder about the security of their off-the-shelf software as they continue to move left in secure software development practices.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-33033
PUBLISHED: 2021-05-14
The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.
CVE-2021-33034
PUBLISHED: 2021-05-14
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.
CVE-2019-25044
PUBLISHED: 2021-05-14
The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.
CVE-2020-24119
PUBLISHED: 2021-05-14
A heap buffer overflow read was discovered in upx 4.0.0, because the check in p_lx_elf.cpp is not perfect.
CVE-2020-27833
PUBLISHED: 2021-05-14
A Zip Slip vulnerability was found in the oc binary in openshift-clients where an arbitrary file write is achieved by using a specially crafted raw container image (.tar file) which contains symbolic links. The vulnerability is limited to the command `oc image extract`. If a symbolic link is first c...