Home routers under attack - archive
FYI...
- http://preview.tinyurl.com/2ubp3y
February 15, 2007 ~ "If you haven't changed the default password on your home router, do so now. That's what researchers at Symantec and Indiana University are saying, after publishing the results of tests that show how attackers could take over your home router using malicious JavaScript code... Once the router has been compromised, victims can be redirected to fraudulent Web sites, the researchers say. So instead of downloading legitimate Microsoft software updates, for example, they could be tricked into downloading malware. Instead of online banking, they could be giving up sensitive information to phishers..."
:fear:
Top 10 Passwords to Avoid
FYI...
- http://www.darkreading.com/document....988&print=true
FEBRUARY 22, 2007 ~ "...Researchers at the University of Maryland recently completed a study in which four live Linux servers were set out as bait to see how often they would be attacked. The study racked up 269,262 attempts in a 24-day period... During that time, 824 attempts were successful -- the attacker got the server's username and password. On average, that means that each of the servers was "cracked" almost 10 times a day...
Most commonly-guessed passwords in cyberspace, in order of frequency (to be avoided):
* 1. (username)
* 2. (username)123
* 3. 123456
* 4. password
* 5. 1234
* 6. 12345
* 7. passwd
* 8. 123
* 9. test
* 10. 1
...The username "root" -- which traditionally has given administrators access to multiple systems at the root level -- is by far the most frequently-guessed, with "admin" finishing a distant second..."
:fear:
Drive-by Pharming in the Wild
FYI...
Drive-by Pharming in the Wild
- http://preview.tinyurl.com/yqutaj
January 22, 2008 (Symantec Security Response Weblog) - "In a previous blog entry* posted almost a year ago, I talked about the concept of a drive-by pharming attack. With this sort of attack, all a victim would have to do to be susceptible is simply view the attacker’s malicious HTML or JavaScript code, which could be placed on a Web page or embedded in an email. The attacker’s malicious code could change the DNS server settings on the victim’s home broadband router (whether or not it’s a wireless router). From then on, all future DNS requests would be resolved by the attacker’s DNS server, which meant that the attacker effectively could control the victim’s Internet connection. At the time we described the attack concept, it was theoretical in the sense that we had not seen an example of it “in the wild.” That’s no longer the case... In one real-life variant that we observed, the attackers embedded the malicious code inside an -email- that claimed it had an e-card waiting for you at the Web site gusanito . com. Unfortunately the email also contained an HTML IMG tag that resulted in an HTTP GET request being made to a router (the make of which is a popular router model in Mexico). The GET request modified the router’s DNS settings so that the URL for a popular Mexico-based banking site (as well as other related domains) would be mapped to an attacker’s Web site. Now, anyone who subsequently tried to go to this particular banking Web site (one of the largest banks in Mexico) using the same computer would be directed to the attacker’s site instead. Anyone who transacted with this rogue site would have their credentials stolen... I would still recommend changing the default router password to something that’s more difficult to guess. For many other router models, doing so will protect you... Also, in general I’d recommend that you reset the router anyway before changing your password. This step ensures that if you have become a victim already, you can start with a clean slate..."
* http://preview.tinyurl.com/2uqwug
> http://blog.trendmicro.com/targeted-...ng-via-modems/
- http://isc.sans.org/diary.html?storyid=3881
Last Updated: 2008-01-24 02:11:21 UTC
:fear::fear:
Linksys WRT54G firmware updates...
FYI...
Linksys WRT54G Security Bypass vuln - updates available
- http://secunia.com/advisories/29344/
Release Date: 2008-03-21
Impact: Security Bypass
Where: From local network
Solution Status: Vendor Patch
OS: Linksys WRT54G Wireless-G Broadband Router
...The vulnerability is reported in firmware version 1.00.9. Other versions may also be affected.
Solution: Install updated firmware versions.
WRT54G v5/v6: Install version 1.02.5.
WRT54G v8: Install version 8.00.5.
WRT54G v8.2: Install version 8.2.05 ...
> http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-1247
Last revised: 3/11/2008
CVSS v2 Base score: 10.0 (High)
"...allows -remote- attackers to perform arbitrary administrative actions.."
Linksys WRT54G » Downloads
- http://preview.tinyurl.com/2qykkj
WRT54G v5/v6: Install version 1.02.5. (3/03/2008)
WRT54G v8: Install version 8.00.5. (1/18/2008)
WRT54G v8.2: Install version 8.2.05 (1/18/2008) ...
:fear:
D-Link router based worm?
FYI...
D-Link router based worm?
- http://isc.sans.org/diary.html?storyid=4175
Last Updated: 2008-03-21 16:44:10 UTC - "...I suspect someone is using snmp to reconfigure the router to its default password or to read it's admin password and then accessing the D-Link via telnet to modify the routers configuration or firmware. The D-Link DWL-1000AP had an snmp based password confidentiality vulnerablity reported back in 2001... I doubt this attack includes changing the firmware of the router itself to become router based self propagating worm. While possible it is more difficult then compromising one of the home systems. Given control of a device like this in the network it would be relatively simple to redirect consumer's traffic to a site with client side exploits that would compromise any computer that was not fully patched..."
:fear:
Zlob Trojan -aka- DNSChanger ...
FYI...
- http://blog.washingtonpost.com/secur..._wirele_1.html
June 11, 2008 - "...recent versions of the ubiquitous "Zlob" Trojan (also known as DNSChanger) will check to see if the victim uses a wireless or wired hardware router. If so, it tries to guess the password needed to administer the router by consulting a built-in list* of default router username/password combinations. If successful, the malware alters the victim's domain name system (DNS) records so that all future traffic passes through the attacker's network first. DNS can be thought of as the Internet's phone book, translating human-friendly names like example.com into numeric addresses that are easier for networking equipment to handle. While researchers have long warned that threats against hardware routers could one day be incorporated into malicious software, this appears to be the first time this behavior has been spotted in malware released into the wild. The type of functionality incorporated into this version of the Zlob Trojan is extremely concerning for a number of reasons. First, Zlob is among the most common type of Trojan downloaded onto Windows machines. According to Microsoft, the company's malicious software removal tool [MSRT] zapped some 14.3 million instances of Zlob-related malware from customer machines in the second half of 2007. The other, more important reason this shift is scary is that a Windows user with a machine infected with a Zlob/DNSChanger variant may succeed in cleaning the malware off an infected computer completely, but still leave the network compromised. Few regular PC users (or even PC technicians) think to look to the router settings, provided the customer's Internet connection is functioning fine... Specific, manufacturer-based video tutorials on how to secure your wireless router are available at this link**..."
* http://blog.washingtonpost.com/securityfix/zlobpass.txt
** http://onguardonline.gov/tutorials/i...rials-wireless
- http://www.trustedsource.org/blog/42...s-into-routers
June 13, 2008 - "...behavior is entirely controlled by the attackers’ DNS servers. These could even redirect existing domain names to servers hosting crafted content (Phishing) or servers dynamically modifying real content. Once your DNS settings are under control, the bad possibilities are nearly unlimited. And, even clean machines are affected once a previous infection on just one client behind the shared router successfully cracked the router login..."
:fear::spider::fear:
ZLOB - 900 rogue DNS servers
FYI...
- http://blog.trendmicro.com/zlob-ente...engine-market/
August 7, 2008 - "More than a year ago, Trend Micro threat researchers uncovered a network of over 900 rogue DNS (Domain Name System) servers related to the ZLOB Trojan family. We gave examples showing that these rogue DNS servers are part of click fraud and leakage of personal information. Just recently, however, we discovered that this network is now targeting four of the most popular search engines. In a large scale click fraud scheme, the ZLOB gang appears to hijack search results and to replace sponsored links with DNS “tricks”... These ZLOB Trojans we found, silently change the local DNS settings of affected systems to use two out of the abovementioned 900+ rogue DNS servers. These Trojans spread by advanced social engineering tricks; an example would be professional-looking Web sites that promise Internet users access to pornographic movies after installing malware that pose as video codecs. The number of ZLOB-related infections is huge — for the last six months of 2007, Microsoft reported more than 14,000,000 infections. It now appears that the ZLOB gang has entered the multibillion-dollar search engine market. ZLOB’s rogue DNS servers resolve several domain names of the main engines to fraudulent IP addresses. Among others, this criminal operation has even set up rogue sites of the UK and Canadian versions of one of the largest search engines. Even searches performed via the installed browser toolbar (provided by the same company) are now being hijacked by ZLOB. Another popular search engine company has been hit even harder — most, if not all, domain names of the search engine that give back search results get resolved to fraudulent Web sites by the rogue DNS servers. The primary objective of ZLOB here appears to be stealing traffic and clicks from search engines, making money along the way. Affected users are immediately redirected to sites that are not at all related to their original search queries. All sponsored search hits of the two main search engines we analyzed were hijacked by ZLOB. Clicks on sponsored links then are not credited to big search engine companies, but to the ZLOB gang instead..."
:fear::fear:
Wi-Fi networks unsecured...
FYI...
- http://preview.tinyurl.com/5cg8nh
September 15, 2008 - "...Instead of scouring for anonymous proxies to stay faceless on the internet, cyber criminals are increasingly targeting unsecured Wi-FI networks to get the job done. A combination of war driving tools such as NetStumbler along with a listing of default router usernames and passwords* is all it takes to freely connect to unsecured Wi-FI networks. Especially since most Wi-Fi routers use default security settings that come pre-installed by the vendor rather than it having being configured by the end user. SOHO routers log every connection and DHCP lease but these logs are flushed once the router is rebooted. If an attacker has access to the administrative console of the router (thanks to the default password), once their nefarious actives have been carried out, a simple restart of the router will erase all tracks. The extent to which an unsecured Wi-Fi connection can be abused is purely left to imagination of the attacker..."
* http://www.routerpasswords.com/
:fear: :fear:
Exposed wireless networks...
FYI...
- http://voices.washingtonpost.com/sec...ireless_a.html
September 26, 2008 - "...Why is changing the default settings on wireless access point a big deal? Because there are plenty of Web sites that list the default user names and passwords built into every brand of router out there... For instance, if I were looking for an exposed wireless network, I'd probably start by searching the local zip code for the default SSID assigned to many popular routers. After all, these would most likely be the networks powered by users who yanked their shiny new routers straight out of the box and plugged them right into the user's modem without modifying a thing..."
* http://wigle.net/gps/gps/main/ssidstats
:fear::fear:
Home routers (using DD-WRT) under attack...
FYI...
DD-WRT vuln...
- http://isc.sans.org/diary.html?storyid=6853
Last Updated: 2009-07-22 20:43:54 UTC - "... new vulnerability in DD-WRT that was being reported in the Register at:
http://www.theregister.co.uk/2009/07...t_router_vuln/ .
DD-WRT runs on routers by Linksys, D-Link Buffalo, ASUS and well as other routers. The complete list can be found at:
http://www.dd-wrt.com/wiki/index.php/Supported_Devices
This vulnerability will allow an attacker to run programs with root priviledges on a vulnerable router. More information can be found on the DD-WRT Forum at:
http://www.dd-wrt.com/phpBB2/viewtop...er=asc&start=0 "
:fear:
SMC router vuln - unpatched
FYI...
SMC router vuln - unpatched
- http://www.wired.com/threatlevel/200...-warner-cable/
October 20, 2009 - "A vulnerability in a Time Warner cable modem and Wi-Fi router deployed to 65,000 customers would allow a hacker to remotely access the device’s administrative menu over the internet, and potentially change the settings to intercept traffic, according to a blogger who discovered the issue. Time Warner acknowledged the problem to Threat Level on Tuesday, and says it’s in the process of testing replacement firmware code from the router manufacturer, which it plans to push out to customers soon... The vulnerability lies with Time Warner’s SMC8014 series cable modem/Wi-Fi router combo, made by SMC. The device is one of several options Time Warner offers to customers who don’t want to install their own modem and router to use with the company’s broadband service..."
- http://www.f-secure.com/weblog/archives/00001799.html
October 23, 2009
:fear:
2wire Gateway router/modem - update available
FYI...
2wire Gateway router/modem - update available
- http://web.nvd.nist.gov/view/vuln/de...=CVE-2009-3962
Last revised: 11/18/2009 - "The management interface on the 2wire Gateway 1700HG, 1701HG, 1800HW, 2071, 2700HG, and 2701HG-T with software before 5.29.52 allows remote attackers to cause a denial of service (reboot)...
CVSS v2 Base Score: 7.8 (HIGH) ...
- http://webvuln.com/advisories/2wire....of.service.txt
Solution Status: Vendor issued firmware patches; Providers are in charge of applying the patches...
WORKAROUND: Disable Remote Management in Firewall -> Advanced Settings...
- http://www.us-cert.gov/cas/bulletins/SB09-327.html#high
November 23, 2009
:fear::fear: