CRLF injection vulnerability in the Digest Authentication support for Mozilla Firefox before 2.0.0.8 and SeaMonkey before 1.1.5 allows remot
CRLF injection vulnerability in the Digest Authentication support for Mozilla Firefox before 2.0.0.8 and SeaMonkey before 1.1.5 allows remote attackers to conduct HTTP request splitting attacks via LF (%0a) bytes in the username attribute.
- Published
- Apr 26, 2007
- Updated
- Jun 16, 2026
- EPSS
- 12.7% · 96th percentile
- CWE
- CWE-20
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 4 / 30 · 12.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
| mozilla | seamonkey | cpe:2.3:a:mozilla:seamonkey |
| microsoft | internet explorer | cpe:2.3:a:microsoft:internet_explorer |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft internet explorer7.0.5730.11
- mozilla firefoxup to 2.0.0.8 inclusive
- mozilla seamonkeyup to 1.1.5 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:4.0 | iceape | before 1.0.11~pre071022-0etch1 | 1.0.11~pre071022-0etch1 |
| Debian:4.0 | iceweasel | before 2.0.0.6+2.0.0.8-0etch1 | 2.0.0.6+2.0.0.8-0etch1 |
| Debian:4.0 | xulrunner | before 1.8.0.14~pre071019b-0etch1 | 1.8.0.14~pre071019b-0etch1 |
| Debian:5.0 | iceape | before 1.0.11~pre071022-0etch1+lenny1 | 1.0.11~pre071022-0etch1+lenny1 |
| Debian:5.0 | xulrunner | before 1.8.0.14~pre071019b-0lenny1 | 1.8.0.14~pre071019b-0lenny1 |
| Red Hat:enterprise_linux:2.1::as | seamonkey | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-chat | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-devel | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-dom-inspector | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-js-debugger | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-mail | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-nspr | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-nspr-devel | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-nss | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:2.1::as | seamonkey-nss-devel | before 0:1.0.9-0.6.el2 | 0:1.0.9-0.6.el2 |
| Red Hat:enterprise_linux:3::as | seamonkey | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-chat | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-debuginfo | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-devel | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-dom-inspector | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-js-debugger | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-mail | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-nspr | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
| Red Hat:enterprise_linux:3::as | seamonkey-nspr-devel | before 0:1.0.9-0.5.el3 | 0:1.0.9-0.5.el3 |
+17
Same product
mozilla: all recordsOther highest-scoring records for the same primary product.
- CVE-2010-3765Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x befKEV94Now
- CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxeKEV87Now
- CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypassKEV86Now
- CVE-2013-1690Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properKEV86Now
- CVE-2019-17026Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion.KEV79This week
- CVE-2024-9680An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines.KEV76This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:iceape | 1.0.11~pre071022-0etch1 · Debian:4.0 | Package registry (OSV) |
| debian:iceweasel | 2.0.0.6+2.0.0.8-0etch1 · Debian:4.0 | Package registry (OSV) |
| debian:xulrunner | 1.8.0.14~pre071019b-0etch1 · Debian:4.0 | Package registry (OSV) |
| red hat:firefox | 0:1.5.0.12-0.7.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:1.5.0.12-0.7.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:seamonkey | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-chat | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-devel | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-dom-inspector | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-js-debugger | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-mail | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-nspr | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-nspr-devel | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-nss | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:seamonkey-nss-devel | 0:1.0.9-0.6.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- none
- Integrity
- P · data or configuration can be modified
- Availability
- none
- Attack complexity
- M
- Confidentiality impact
- None
- Integrity impact
- P
- Availability impact
- None
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742
- secunia.com/advisories/27276
- secunia.com/advisories/27298
- secunia.com/advisories/27311
- secunia.com/advisories/27315
- secunia.com/advisories/27325
- secunia.com/advisories/27327
- secunia.com/advisories/27335
- secunia.com/advisories/27336
- secunia.com/advisories/27356
- secunia.com/advisories/27360
- secunia.com/advisories/27383
- secunia.com/advisories/27387
- secunia.com/advisories/27403
- secunia.com/advisories/27414
- secunia.com/advisories/27425
- secunia.com/advisories/27480
- secunia.com/advisories/27665
- secunia.com/advisories/27680
- secunia.com/advisories/28398
Vendor advisories and official records. Exploit/PoC links are deliberately left out.