JVN#01161596
Safari vulnerable to script injection
Overview
Safari contains a script injection vulnerability.
Products Affected
- Safari version 11.0.2 and earlier
Description
Safari provided by Apple Inc. contains a script injection vulnerability (CWE-81) in the processing of displaying an error page when it fails to verify server certificates.
In an error page Safari displays when it fails to verify server certificates, a domain name of the website accessed is output straightly. Therefore by exploiting this vulnerability, an arbitrary script may be executed on the user's web browser via an error page that is displayed when a user is led to visit a website with a specially crafted domain name.
Impact
If a user is led to visit a website with a specially crafted domain name, an arbitrary script may be executed on the user's web browser.
Solution
Update the Software
Apply the latest update according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Apple Inc. | About the security content of Safari 11.1 |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Yuji Tonai of NTT Communications Corporation reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2018-4133 |
| JVN iPedia |
JVNDB-2018-000029 |