Internet Explorer Zero Day Discovered

Researchers at Symantec have reported the discovery of an unpatched vulnerability that impacts Internet Explorer versions 6, 7, and 8 running under Windows. Microsoft has released a security advisory confirming the vulnerability but currently has no plans to release an out-of-band update.

The exploit was delivered via targeted email that contained a link to a single compromised website (all malicious files have since been removed).

According to Microsoft, the vulnerability exists because "Internet Explorer incorrectly under-allocates memory to store a certain combination of Cascading Style Sheets (CSS) tags when parsing HTML. This could result in an overwrite of the least significant byte of a vtable pointer. An attacker able to spray memory with a specific pattern could potentially execute code in the context of the process parsing the HTML."

Heap spray attacks can be mitigated by enabling Data Execution Prevention (DEP). By default, DEP is enabled in Internet Explorer v8. To enable DEP in Internet Explorer v6 and v7, refer to the links below:

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Resetare Generala Internet Explorer (IE6, IE 7 & IE 8)

Stealth Settings: Home / Internet / Resetare Generala Internet Explorer (IE6, IE 7 & IE 8)

Publicat de Stealth Settings pe November 15, 2010 · Spune-ti Parerea 

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Resetare Generala Internet Explorer (IE6, IE 7 & IE 8)

Internet Explorer este unul dintre cele mai populare internet browsere, fiind confundat de o parte din utilizatorii novice cu Internetul.

In comparatie cu Mozilla Firefox, Opera si Chrome, Internet Explorer este mai putin stabil si pune mai multe probleme de securitate, insa trebuie sa recunoastem ca o parte din vina problemei de stabilitate o reprezinta si experienta utilizatorului, care instaleaza toolbar-uri, add-on-uri si viziteaza site-uri "dubioase" ale caror surse contin coduri malware. 

Daca v-ati facut de cap prin setarile Internet Exporer, ati activat si instalat add-on-uri si toolbar-uri, iar acesta a inceput sa se miste mai greu, sa dea erori sau sa nu se mai deschida, atunci o resetare generala a browser-ului ar putea rezolva problema.

Reset Internet Explorer Settings (IE 6, IE7, IE 8 – nu am testat pe IE9)

Inainte de a spune cum putem reseta Internet Explorer, este bine sa stiti ca resetarea generala implica :

- dezactivare tooblars & add-ons (foarte util daca aveti de a face cu un crash care a aparut in urma instalarii unui add-on sau a unui toolbar)
- stergerea listei de site-uri blocate si a listei de site-uri trusted (valabil pentru cine foloseste aceasta setare ca sa limiteze accesul la anumite site-uri).  
- stergerea cookie si a setarilor personalizate pentru cookies.
- resetare Pop-up Blocker (sterge inclusiv lista de popup-uri permise) 
- reseteare setari tab-uri
- resetare setari de securitate.
- resetare peronalizare (limba, culori, font-uri, zoom, search box )
- sterge temporary Internet files, cookies, form data – autocompletare date, parolele salvate…  
- resetare feed-uri (daca aveti site-uri adaugate in feed este bine sa faceti un backup inainte de a reseta browser-ul).
- resetare setari ActiveX controls.
- resetare InPrivate Filtering - reseteaza setarile personalizate.

Cum putem sa resetam Internet Explorer 6, IE 7 sau IE 8

1. Deschidem Run Box (Win+R) si tastam :

rundll32 inetcpl.cpl ResetIEtoDefaults

OK sau Enter.

2. In casuta care se deschide facem click pe butonul "Reset".

Daca dupa acest pas nu se rezolva problema browser-ului dvs. este recomandat sa repetati comanda si sa bifati casuta de la "Delete personal settings".

Nu este nevoie sa deschideti Internet Explorer inainte a folosi comanda de resetare "rundll32 inetcpl.cpl ResetIEtoDefaults". Poate fi folosita si daca browser-ul nu este deschis sau daca browser-ul nu se mai deschide din cauza unei erori.

Comanda de resetare Internet Explorer via Run Box a fost testata pe Windows XP, Windows Vista si Windows 7.

Stealth Settings: Internet Explorer – Reset to Default Settings .

Stealth Settings: Internet, Internet Explorer, Note, Noteworthy, Windows Tips
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