SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation.
| Version | Base score | Base severity | Vector |
|---|
| Hyperlink | Resource Type |
|---|
SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation.
| Type | CWE ID | Description |
|---|---|---|
| text | N/A | n/a |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
| Hyperlink | Resource |
|---|---|
| https://sites.google.com/site/itstheshappening | x_refsource_MISC |
| http://www.securityfocus.com/bid/12577 | vdb-entry x_refsource_BID |
| http://shattered.io/ | x_refsource_MISC |
| https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html | x_refsource_MISC |
| http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1 | x_refsource_MISC |
| http://ia.cr/2007/474 | x_refsource_MISC |
| https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html | x_refsource_MISC |
| https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html | x_refsource_MISC |
| https://www.schneier.com/blog/archives/2005/02/sha1_broken.html | x_refsource_MISC |
| https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/ | x_refsource_MISC |
| https://kc.mcafee.com/corporate/index?page=content&id=SB10340 | x_refsource_CONFIRM |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 3.0 | 5.9 | MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Primary | 2.0 | 4.3 | MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |