CVE-2017-7783
published 2018-06-11CVE-2017-7783: If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will…
PriorityP350high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EXPLOIT
EPSS
13.70%
96.0th percentile
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 55.0-1 (sid) | firefox 55.0-1 (sid) |
| mozilla | firefox | < 55.0 | 55.0 |
| mozilla | firefox | >= 0 < 55.0.1+build2-0ubuntu0.14.04.2 | 55.0.1+build2-0ubuntu0.14.04.2 |
| mozilla | firefox | >= 0 < 55.0.2+build1-0ubuntu0.14.04.1 | 55.0.2+build1-0ubuntu0.14.04.1 |
| mozilla | firefox | >= 0 < 55.0.1+build2-0ubuntu0.16.04.2 | 55.0.1+build2-0ubuntu0.16.04.2 |
| mozilla | firefox | >= 0 < 55.0.2+build1-0ubuntu0.16.04.1 | 55.0.2+build1-0ubuntu0.16.04.1 |
| mozilla | firefox | >= unspecified < 55 | 55 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv9.1CRITICAL
vendor_ubuntu9.1CRITICAL
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
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GHSA
GHSA-ch5f-5368-9hw8: If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example
ghsa_unreviewed·2022-05-14
CVE-2017-7783 [HIGH] CWE-20 GHSA-ch5f-5368-9hw8: If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
OSV
firefox regression
osv·2017-08-17·CVSS 9.1
[CRITICAL] firefox regression
firefox regression
USN-3391-1 fixed vulnerabilities in Firefox. The update introduced a
performance regression with WebExtensions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786,
CVE-201
OSV
ubufox update
osv·2017-08-16·CVSS 9.1
[CRITICAL] ubufox update
ubufox update
USN-3391-1 fixed vulnerabilities in Firefox. This update provides the
corresponding update for Ubufox.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786,
CVE-2017-7787, CVE-2017-7788, CVE-2017-7789, CVE-2017-7791, CVE-2017-7792,
CVE-2017-7794,
OSV
firefox vulnerabilities
osv·2017-08-15·CVSS 9.1
CVE-2017-7753 [CRITICAL] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786,
CVE-2017-7787, CVE-2017-7788, CVE-2017-7789, CVE-2017-7791, CVE-2017-7792,
CVE-2017-7794, CVE-2017-7797, CVE-2017-7798, CVE-2017-7799, CVE-2017-7800,
CVE-2017-7801, CVE-2017-7802, CVE-2017-7803, CVE-2017-7806, C
OSV
CVE-2017-7783: If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example
osv·2017-08-10·CVSS 7.5
CVE-2017-7783 [HIGH] CVE-2017-7783: If a long user name is used in a username/password combination in a site URL (such as " http://UserName:Password@example
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
Ubuntu
Firefox regression
vendor_ubuntu·2017-08-17·CVSS 9.1
[CRITICAL] Firefox regression
Title: Firefox regression
Summary: USN-3391-1 introduced a regression in Firefox.
USN-3391-1 fixed vulnerabilities in Firefox. The update introduced a
performance regression with WebExtensions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE
Ubuntu
Ubufox update
vendor_ubuntu·2017-08-16·CVSS 9.1
[CRITICAL] Ubufox update
Title: Ubufox update
Summary: This update provides compatible packages for Firefox 55.
USN-3391-1 fixed vulnerabilities in Firefox. This update provides the
corresponding update for Ubufox.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786,
CVE-2017-7787,
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2017-08-15·CVSS 9.1
CVE-2017-7753 [CRITICAL] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to conduct cross-site scripting (XSS) attacks,
bypass sandbox restrictions, obtain sensitive information, spoof the
origin of modal alerts, bypass same origin restrictions, read
uninitialized memory, cause a denial of service via program crash or hang,
or execute arbitrary code. (CVE-2017-7753, CVE-2017-7779, CVE-2017-7780,
CVE-2017-7781, CVE-2017-7783, CVE-2017-7784, CVE-2017-7785, CVE-2017-7786,
CVE-2017-7787, CVE-2017-7788, CVE-2017-7789, CVE-2017-7791, CVE-2017-7792,
CVE-2017-7794, CVE-2017-
Red Hat
Mozilla: DOS attack through long username in URL (MFSA 2017-18)
vendor_redhat·2017-08-08·CVSS 7.5
CVE-2017-7783 [HIGH] Mozilla: DOS attack through long username in URL (MFSA 2017-18)
Mozilla: DOS attack through long username in URL (MFSA 2017-18)
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
Package: firefox (Red Hat Enterprise Linux 6) - Not affected
Package: firefox (Red Hat Enterprise Linux 7) - Not affected
Debian
CVE-2017-7783: firefox - If a long user name is used in a username/password combination in a site URL (su...
vendor_debian·2017·CVSS 7.5
CVE-2017-7783 [HIGH] CVE-2017-7783: firefox - If a long user name is used in a username/password combination in a site URL (su...
If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
Scope: local
sid: resolved (fixed in 55.0-1)
No detection rules found.
Bugzilla
CVE-2017-7783 Mozilla: DOS attack through long username in URL (MFSA 2017-18)
bugzilla·2017-08-08·CVSS 7.5
CVE-2017-7783 [HIGH] CVE-2017-7783 Mozilla: DOS attack through long username in URL (MFSA 2017-18)
CVE-2017-7783 Mozilla: DOS attack through long username in URL (MFSA 2017-18)
If a long user name is used in a username/password combination in a site URL (such as 'http://UserName:[email protected]'), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service on the browser as a whole.
External Reference:
https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7783
Acknowledgements:
Name: the Mozilla project
Upstream: Amit Sangra
Bugzilla
DOS using long Username in URL scheme
bugzilla·2017-04-29
[MEDIUM] DOS using long Username in URL scheme
DOS using long Username in URL scheme
Created attachment 8863148
In the scheme: http://UserName:[email protected] → By submitting a very long value for UserName, DOS is performed.
User Agent:
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
Description:
- To send username and password with a URL, we use this scheme: http://UserName:[email protected]
- Opon visiting URL's of this scheme a prompt box is displayed confirming the login.
- The prompt box displays a message containing the username (From the URL).
- By supplying a very long value for the username we can make the prompt box crash. (Not a browser crash)
- This crash will cause DOS for the victim, and his browser will get locked out.
Note: I am able to crash with 10k characters long username.
Proo
http://www.securityfocus.com/bid/100401http://www.securitytracker.com/id/1039124https://bugzilla.mozilla.org/show_bug.cgi?id=1360842https://www.exploit-db.com/exploits/43020/https://www.mozilla.org/security/advisories/mfsa2017-18/http://www.securityfocus.com/bid/100401http://www.securitytracker.com/id/1039124https://bugzilla.mozilla.org/show_bug.cgi?id=1360842https://www.exploit-db.com/exploits/43020/https://www.mozilla.org/security/advisories/mfsa2017-18/
2018-06-11
Published