jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content f…
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.
https://cwe.mitre.org/data/definitions/158.html →Open in CWE collection →An adversary embeds one or more null bytes in input to the target software. This attack relies on the usage of a null-valued byte as a string terminator in many environments. The goal is for certain components of the target software to stop processing the input when it encounters the null byte(s).
https://capec.mitre.org/data/definitions/52.html →Open in CAPEC collection →If a string is passed through a filter of some kind, then a terminal NULL may not be valid. Using alternate representation of NULL allows an adversary to embed the NULL mid-string while postfixing the proper data so that the filter is avoided. One example is a filter that looks for a trailing slash character. If a string insertion is possible, but the slash must exist, an alternate encoding of NULL in mid-string may be used.
https://capec.mitre.org/data/definitions/53.html →Open in CAPEC collection →| Product | Vendor | Status |
|---|---|---|
| Tracked | ||
| Tracked | ||
| Tracked | ||
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox | Tracked | |
| firefox-esr | Tracked | |
| mozjs102 | Tracked | |
| mozjs102 | Tracked | |
| mozjs115 | Tracked | |
| mozjs115 | Tracked | |
| mozjs115 | Tracked | |
| mozjs52 | Tracked |